Number 20
Number 20 spell 🔊, write in words: twenty . Ordinal number 20th is said 🔊 and write: twentieth. Phone prefix +20 or 0020. The meaning of number 20 in Maths: Is Prime? Factorization and dividers. The square root and cube root of 20. The meaning in computer science, numerology, codes and images, writing and naming in other languages, other interesting facts, news.
Useful information about number 20
The decimal (Arabic) number 20 converted to a Roman number is XX.
Roman and decimal number conversions.
20 kilograms (kg) = 44.1 pounds (lb)
20 pounds (lb) = 9.1 kilograms (kg)
20 kilometers (km) equals to 12.427 miles (mi).
20 miles (mi) equals to 32.187 kilometers (km).
20 meters (m) equals to 32.187 feet (ft).
20 feet (ft) equals 6.096 meters (m).
20 centimeters (cm) equals to 7.9 inches (in).
20 inches (in) equals to 50.8 centimeters (cm).
20° Fahrenheit (°F) equals to 6.7° Celsius (°C)
20° Celsius (°C) equals to 68° Fahrenheit (°F)
20 Horsepower (hp) equals to 14.71 kilowatts (kW)
20 kilowatts (kW) equals to 27.20 horsepower (hp)
The number 20 converted to a Mayan number is  
Decimal and Mayan number conversions. 
Weight conversion
20 kilograms (kg) = 44.1 pounds (lb)
20 pounds (lb) = 9.1 kilograms (kg)
Length conversion
20 kilometers (km) equals to 12.427 miles (mi).
20 miles (mi) equals to 32.187 kilometers (km).
20 meters (m) equals to 32.187 feet (ft).
20 feet (ft) equals 6.096 meters (m).
20 centimeters (cm) equals to 7.9 inches (in).
20 inches (in) equals to 50.8 centimeters (cm).
Temperature conversion
20° Fahrenheit (°F) equals to 6.7° Celsius (°C)
20° Celsius (°C) equals to 68° Fahrenheit (°F)
Power conversion
20 Horsepower (hp) equals to 14.71 kilowatts (kW)
20 kilowatts (kW) equals to 27.20 horsepower (hp)
Codes and images of the number 20
Number 20 morse code: .. Sign language for number 20:
Images of the number  
Image (1) of the number  Image (2) of the number 
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Number 20 infographic.

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Gregorian, Hebrew, Islamic, Persian and Buddhist year (calendar)
Gregorian year 20 is Buddhist year 563.Buddhist year 20 is Gregorian year 523 a. C.
Gregorian year 20 is Islamic year 621 or 620.
Islamic year 20 is Gregorian year 640 or 641.
Gregorian year 20 is Persian year 603 or 602.
Persian year 20 is Gregorian 641 or 642.
Gregorian year 20 is Hebrew year 3780 or 3781.
Hebrew year 20 is Gregorian year 3740 a. C.
The Buddhist calendar is used in Sri Lanka, Cambodia, Laos, Thailand, and Burma. The Persian calendar is official in Iran and Afghanistan.
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Mathematics of no. 20
Multiplications
Multiplication table of 20
20 multiplied by two equals 40 (20 x 2 = 40).
20 multiplied by three equals 60 (20 x 3 = 60).
20 multiplied by four equals 80 (20 x 4 = 80).
20 multiplied by five equals 100 (20 x 5 = 100).
20 multiplied by six equals 120 (20 x 6 = 120).
20 multiplied by seven equals 140 (20 x 7 = 140).
20 multiplied by eight equals 160 (20 x 8 = 160).
20 multiplied by nine equals 180 (20 x 9 = 180).
show multiplications by 6, 7, 8, 9 ...
20 multiplied by seven equals 140 (20 x 7 = 140).
20 multiplied by eight equals 160 (20 x 8 = 160).
20 multiplied by nine equals 180 (20 x 9 = 180).
Fractions: decimal fraction and common fraction
Fraction table of 20
Half of 20 is 10 (20 / 2 = 10).
One third of 20 is 6,6667 (20 / 3 = 6,6667 = 6 2/3).
One quarter of 20 is 5 (20 / 4 = 5).
One fifth of 20 is 4 (20 / 5 = 4).
One sixth of 20 is 3,3333 (20 / 6 = 3,3333 = 3 1/3).
One seventh of 20 is 2,8571 (20 / 7 = 2,8571 = 2 6/7).
One eighth of 20 is 2,5 (20 / 8 = 2,5 = 2 1/2).
One ninth of 20 is 2,2222 (20 / 9 = 2,2222 = 2 2/9).
show fractions by 6, 7, 8, 9 ...
One seventh of 20 is 2,8571 (20 / 7 = 2,8571 = 2 6/7).
One eighth of 20 is 2,5 (20 / 8 = 2,5 = 2 1/2).
One ninth of 20 is 2,2222 (20 / 9 = 2,2222 = 2 2/9).
Calculator
20  
Advanced math operations
Is Prime?
The number 20 is not a prime number. The closest prime numbers are 19, 23.
20th prime number in order is 71.
Factorization and dividers
Factorization 2 * 2 * 5 = 20
Divisors of number 20 are 1 , 2 , 4 , 5 , 10 , 20
Total Divisors 6.
Sum of Divisors 42.
Powers
The second power of 20^{2} is 400.
The third power of 20^{3} is 8.000.
Roots
The square root √20 is 4,472136.
The cube root of ^{3}√20 is 2,714418.
Logarithms
The natural logarithm of No. ln 20 = log_{e} 20 = 2,995732.
The logarithm to base 10 of No. log_{10} 20 = 1,30103.
The Napierian logarithm of No. log_{1/e} 20 = 2,995732.
Trigonometric functions
The cosine of 20 is 0,408082.The sine of 20 is 0,912945.
The tangent of 20 is 2,237161.
Properties of the number 20
Is a Friedman number: NoIs a Fibonacci number: No
Is a Bell number: No
Is a palindromic number: No
Is a pentagonal number: No
Is a perfect number: No
Number 20 in Computer Science
Code type  Code value 

Port 20/TCP  FTP Protocol (data)  port for transferring FTP data 
Unix time  Unix time 20 is equal to Thursday Jan. 1, 1970, 12:20 a.m. GMT 
IPv4, IPv6  Number 20 internet address in dotted format v4 0.0.0.20, v6 ::14 
20 Decimal  = 10100 Binary 
20 Decimal  = 202 Ternary 
20 Decimal  = 24 Octal 
20 Decimal  = 14 Hexadecimal (0x14 hex) 
20 BASE64  MjA= 
20 MD5  98f13708210194c475687be6106a3b84 
20 SHA1  91032ad7bbcb6cf72875e8e8207dcfba80173f7c 
20 SHA224  751267062c92e398c3942214b58136f73a4b9e1ca9a214d72d6d5805 
20 SHA256  f5ca38f748a1d6eaf726b8a42fb575c3c71f1864a8143301782de13da2d9202b 
20 SHA384  fd21efb0c2863b1d2460f7e6048d757beb2326c6e1bbee5194826be2c626a9de3bc8d6f2488617e505c960478d3855d0 
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Numerology 20
The meaning of the number 2 (two), numerology 2
Character frequency 2: 1
The number two (2) needs above all to feel and to be. It represents the couple, duality, family, private and social life. He/she really enjoys home life and family gatherings. The number 2 denotes a sociable, hospitable, friendly, caring and affectionate person. It is the sign of empathy, cooperation, adaptability, consideration for others, supersensitivity towards the needs of others. The number 2 (two) is also the symbol of balance, togetherness and receptivity. He/she is a good partner, colleague or companion; he/she also plays a wonderful role as a referee or mediator. Number 2 person is modest, sincere, spiritually influenced and a good diplomat. It represents intuition and vulnerability.
More about the meaning of the number 2 (two), numerology 2 ...
The meaning of the number 0 (zero), numerology 0
Character frequency 0: 1
Everything begins at the zero point and at the zero point everything ends. Many times we do not know the end, but we know the beginning, it is at the zero point.
More about the meaning of the number 0 (zero), numerology 0 ...
Interesting facts about the number 20
Asteroids
 (20) Massalia is asteroid number 20. It was discovered by A. de Gasparis from Obs. Capodimonte Astronomical on 9/19/1852.
Aircrafts and flights
 01/18/1960 the Capital Airlines plane, flight number 20, Vickers Viscount 745D crashed in Holdcroft, Virginia, US 46 passengers and 4 crew members died.
Areas, mountains and surfaces
 The total area of Ireland is 32,595 square miles (84,421 square km). Country Ireland and United Kingdom (Northern Ireland). 20th largest island in the world.
Astrology
 It is one of the lucky numbers for the zodiac sign Aquarius.
 What is astrology and what is it for?
Biology
 It is the number of teeth in the deciduous dentition or milk teeth, it is 20.
Distances between cities
 There is a 13 miles (20 km) direct distance between Abū Ghurayb (Iraq) and Baghdad (Iraq).
 There is a 13 miles (20 km) direct distance between Álvaro Obregón (Mexico) and Ciudad Nezahualcoyotl (Mexico).
 There is a 20 miles (32 km) direct distance between Álvaro Obregón (Mexico) and Ecatepec (Mexico).
 There is a 20 miles (31 km) direct distance between Bucheonsi (South Korea) and Seongnamsi (South Korea).
 There is a 13 miles (20 km) direct distance between Delhi (India) and Ghāziābād (India).
 There is a 13 miles (20 km) direct distance between Depok (Indonesia) and Jakarta (Indonesia).
 There is a 20 miles (32 km) direct distance between Depok (Indonesia) and Tangerang (Indonesia).
 There is a 20 miles (32 km) direct distance between Incheon (South Korea) and Suwonsi (South Korea).
 There is a 20 miles (32 km) direct distance between Kalyān (India) and Mumbai (India).
Games
 Pokémon Raticate (Ratta) is a pokémon number # 020 of the National Pokédex. Raticate is a normal type Pokémon in the first generation. It is a Field Egg group Pokémon. Raticate's other indexes are Teselia index 060 , Johto index 018 .
In other fields
 20 lustrums is a century.
 In Japanese tradition, the age of majority is set at 20 years.
Mathematics
 20 is the number of rooted trees with 6 vertices.
Mobile and telephony
 Number 20 or +20 or 0020 is a dial the international call prefix for Egypt. (00/+) is dial the international call prefix.
Music
 'Matchbox Twenty' (also known as MB20, MBT, Matchbox Twenty and originally as Matchbox 20) is an American alternative rock band originally from Orlando, Florida. When Paul Douchette was working in a restaurant, he served a customer with patches on his clothes and could only read the word Matchbox. 20 was the number seen on this character's shirt.
 '20 Margaritas' is a song by the country music duo Big & Rich.
 '20 Good Reasons ', in Spanish '20 good reasons', was the first single from Thirsty Merc's second album Slideshows.
 '20 Block ', in Spanish '20 Block', is a song by the American pop punk band A Loss for Words (formerly Last Ride).
 '20 Size 'is a song by the Scottish postrock band Mogwai.
Science
 Calcium is the chemical element in the periodic table that has the symbol Ca and atomic number 20.
Sports
 The best athletes to wear number 20
Barry Sanders, NFL; Lou Brock, MLB; Mike Schmidt, MLB; Frank Robinson, MLB; Tony Stewart, NASCAR; Luc Robitaille, NHL; Ed Reed, NFL; Rob Niedermayer, NHL; Josh Gibson, baseball
Please write us
If you know something interesting about the number 20 or any natural number (positive integer), please write to us.Number 20 in other languages
How to say or write the number twenty in Spanish, German, French and other languages.
Spanish:  🔊 (número 20)  veinte 
German:  🔊 (Anzahl 20)  zwanzig 
French:  🔊 (nombre 20)  vingt 
Portuguese:  🔊 (número 20)  vinte 
Chinese:  🔊 (数 20)  二十 
Arabian:  🔊 (عدد 20)  عشرون 
Czech:  🔊 (číslo 20)  dvacet 
Korean:  🔊 (번호 20)  이십 
Danish:  🔊 (nummer 20)  tyve 
Hebrew:  (מספר 20)  עשרים 
Dutch:  🔊 (nummer 20)  twintig 
Japanese:  🔊 (数 20)  二十 
Indonesian:  🔊 (jumlah 20)  dua puluh 
Italian:  🔊 (numero 20)  venti 
Norwegian:  🔊 (nummer 20)  tjue 
Polish:  🔊 (liczba 20)  dwadzieścia 
Russian:  🔊 (номер 20)  двадцать 
Turkish:  🔊 (numara 20)  yirmi 
Thai:  🔊 (จำนวน 20)  ยี่สิบ 
Ukrainian:  🔊 (номер 20)  двадцять 
Vietnamese:  🔊 (con số 20)  hai mươi 
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Number 20 in News
Buzz: The DOJ Will Waive The Death Penalty For The American Who Fought With Extremists In Ukraine And Allegedly Killed A Florida Couple
Waiving the death penalty for Craig Lang could speed up his extradition from Kyiv, where capital punishment has been off the books for 20 years.View Entire Post › ... May 10, 2021 
BBC: Louise Minchin: BBC Breakfast bids presenter goodbye
One of BBC Breakfast's main presenters, Louise Minchin, has broadcast her final programme after 20 years of early morning alarm calls. Sept. 15, 2021 
CNN: At least 20 people killed when fuel tank explodes in Lebanon
At least 20 people were killed and 79 injured in a fuel tank explosion in the Akkar region in northern Lebanon, the Lebanese Red Cross said on its Twitter account early on Sunday. Aug. 16, 2021 
CNN: Amanpour: 'The Taliban have been waiting for this moment for 20 years'
The Taliban have taken control of the presidential palace in Afghanistan's capital Kabul after former President Ashraf Ghani fled the country. With more than two decades of experience covering the country, CNN's Christiane Amanpour explains how we got here and what this means for Afghans. Aug. 16, 2021 
NyTimes: Afghanistan Maps: 20 Years of Defense, Erased by the Taliban in a Few Months
Maps show the stunning speed of Taliban advances after the United States began to withdraw. Aug. 14, 2021 