Number 30
Number 30 spell 🔊, write in words: thirty . Ordinal number 30th is said 🔊 and write: thirtieth. Phone prefix +30 or 0030. The meaning of number 30 in Maths: Is Prime? Factorization and dividers. The square root and cube root of 30. The meaning in computer science, numerology, codes and images, writing and naming in other languages, other interesting facts, news.
Useful information about number 30
The decimal (Arabic) number 30 converted to a Roman number is XXX.
Roman and decimal number conversions.
30 kilograms (kg) = 66.1 pounds (lb)
30 pounds (lb) = 13.6 kilograms (kg)
30 kilometers (km) equals to 18.641 miles (mi).
30 miles (mi) equals to 48.280 kilometers (km).
30 meters (m) equals to 48.280 feet (ft).
30 feet (ft) equals 9.144 meters (m).
30 centimeters (cm) equals to 11.8 inches (in).
30 inches (in) equals to 76.2 centimeters (cm).
30° Fahrenheit (°F) equals to 1.1° Celsius (°C)
30° Celsius (°C) equals to 86° Fahrenheit (°F)
30 Horsepower (hp) equals to 22.06 kilowatts (kW)
30 kilowatts (kW) equals to 40.79 horsepower (hp)
The number 30 converted to a Mayan number is  
Decimal and Mayan number conversions. 
Weight conversion
30 kilograms (kg) = 66.1 pounds (lb)
30 pounds (lb) = 13.6 kilograms (kg)
Length conversion
30 kilometers (km) equals to 18.641 miles (mi).
30 miles (mi) equals to 48.280 kilometers (km).
30 meters (m) equals to 48.280 feet (ft).
30 feet (ft) equals 9.144 meters (m).
30 centimeters (cm) equals to 11.8 inches (in).
30 inches (in) equals to 76.2 centimeters (cm).
Temperature conversion
30° Fahrenheit (°F) equals to 1.1° Celsius (°C)
30° Celsius (°C) equals to 86° Fahrenheit (°F)
Power conversion
30 Horsepower (hp) equals to 22.06 kilowatts (kW)
30 kilowatts (kW) equals to 40.79 horsepower (hp)
Codes and images of the number 30
Number 30 morse code: ... Sign language for number 30:
Images of the number  
Image (1) of the number  Image (2) of the number 
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Number 30 infographic.

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Gregorian, Hebrew, Islamic, Persian and Buddhist year (calendar)
Gregorian year 30 is Buddhist year 573.Buddhist year 30 is Gregorian year 513 a. C.
Gregorian year 30 is Islamic year 610 or 609.
Islamic year 30 is Gregorian year 650 or 651.
Gregorian year 30 is Persian year 593 or 592.
Persian year 30 is Gregorian 651 or 652.
Gregorian year 30 is Hebrew year 3790 or 3791.
Hebrew year 30 is Gregorian year 3730 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. 30
Multiplications
Multiplication table of 30
30 multiplied by two equals 60 (30 x 2 = 60).
30 multiplied by three equals 90 (30 x 3 = 90).
30 multiplied by four equals 120 (30 x 4 = 120).
30 multiplied by five equals 150 (30 x 5 = 150).
30 multiplied by six equals 180 (30 x 6 = 180).
30 multiplied by seven equals 210 (30 x 7 = 210).
30 multiplied by eight equals 240 (30 x 8 = 240).
30 multiplied by nine equals 270 (30 x 9 = 270).
show multiplications by 6, 7, 8, 9 ...
30 multiplied by seven equals 210 (30 x 7 = 210).
30 multiplied by eight equals 240 (30 x 8 = 240).
30 multiplied by nine equals 270 (30 x 9 = 270).
Fractions: decimal fraction and common fraction
Fraction table of 30
Half of 30 is 15 (30 / 2 = 15).
One third of 30 is 10 (30 / 3 = 10).
One quarter of 30 is 7,5 (30 / 4 = 7,5 = 7 1/2).
One fifth of 30 is 6 (30 / 5 = 6).
One sixth of 30 is 5 (30 / 6 = 5).
One seventh of 30 is 4,2857 (30 / 7 = 4,2857 = 4 2/7).
One eighth of 30 is 3,75 (30 / 8 = 3,75 = 3 3/4).
One ninth of 30 is 3,3333 (30 / 9 = 3,3333 = 3 1/3).
show fractions by 6, 7, 8, 9 ...
One seventh of 30 is 4,2857 (30 / 7 = 4,2857 = 4 2/7).
One eighth of 30 is 3,75 (30 / 8 = 3,75 = 3 3/4).
One ninth of 30 is 3,3333 (30 / 9 = 3,3333 = 3 1/3).
Calculator
30  
Advanced math operations
Is Prime?
The number 30 is not a prime number. The closest prime numbers are 29, 31.
30th prime number in order is 113.
Factorization and dividers
Factorization 2 * 3 * 5 = 30
Divisors of number 30 are 1 , 2 , 3 , 5 , 6 , 10 , 15 , 30
Total Divisors 8.
Sum of Divisors 72.
Powers
The second power of 30^{2} is 900.
The third power of 30^{3} is 27.000.
Roots
The square root √30 is 5,477226.
The cube root of ^{3}√30 is 3,107233.
Logarithms
The natural logarithm of No. ln 30 = log_{e} 30 = 3,401197.
The logarithm to base 10 of No. log_{10} 30 = 1,477121.
The Napierian logarithm of No. log_{1/e} 30 = 3,401197.
Trigonometric functions
The cosine of 30 is 0,154251.The sine of 30 is 0,988032.
The tangent of 30 is 6,405331.
Properties of the number 30
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 30 in Computer Science
Code type  Code value 

Unix time  Unix time 30 is equal to Thursday Jan. 1, 1970, 12:30 a.m. GMT 
IPv4, IPv6  Number 30 internet address in dotted format v4 0.0.0.30, v6 ::1e 
30 Decimal  = 11110 Binary 
30 Decimal  = 1010 Ternary 
30 Decimal  = 36 Octal 
30 Decimal  = 1E Hexadecimal (0x1e hex) 
30 BASE64  MzA= 
30 MD5  34173cb38f07f89ddbebc2ac9128303f 
30 SHA1  22d200f8670dbdb3e253a90eee5098477c95c23d 
30 SHA224  6332531eeafc6e0ede272192be898f549950fb32b209d04f0a98306a 
30 SHA256  624b60c58c9d8bfb6ff1886c2fd605d2adeb6ea4da576068201b6c6958ce93f4 
30 SHA384  32f5039553078543bf8748756a64c8b02338afbc1ee3c70dde5988760c3b8833e0e3c830fea5b65f08cb803842eb6ed6 
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Numerology 30
The meaning of the number 3 (three), numerology 3
Character frequency 3: 1
The number three (3) came to share genuine expression and sensitivity with the world. People associated with this number need to connect with their deepest emotions. The number 3 is characterized by its pragmatism, it is utilitarian, sagacious, dynamic, creative, it has objectives and it fulfills them. He/she is also selfexpressive in many ways and with communication skills.
More about the meaning of the number 3 (three), numerology 3 ...
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 30
Asteroids
 (30) Urania is asteroid number 30. It was discovered by J. R. Hind from George Bishop Observatory on 7/22/1854.
Areas, mountains and surfaces
 The total area of Severny Island (Novaya Zemlya, north) is 18,177 square miles (47,079 square km). Country Russia (Arkhangelsk). 30th largest island in the world.
Astrology
 It is one of the lucky numbers for the Cancer zodiac sign.
 What is astrology and what is it for?
Distances between cities
 There is a 19 miles (30 km) direct distance between Bucheonsi (South Korea) and Suwonsi (South Korea).
 There is a 30 miles (48 km) direct distance between Dallas (USA) and Fort Worth (USA).
 There is a 19 miles (30 km) direct distance between Farīdābād (India) and Ghāziābād (India).
 There is a 19 miles (30 km) direct distance between Hong Kong (Hong Kong) and Shenzhen (China).
 There is a 19 miles (30 km) direct distance between Seoul (South Korea) and Suwonsi (South Korea).
 There is a 30 miles (48 km) direct distance between Yokohama (Japan) and Yono (Japan).
Economy
 The DAX or Xetra DAX index is the benchmark stock index of the Frankfurter Wertpapierbörse (Frankfurt Stock Exchange). It is also known as Dax 30. It is the best known index on the German Stock Exchange. Read more .
Games
Mathematics
 30 is the largest number with the property that all smaller numbers relatively prime to it are prime.
Mobile and telephony
 Number 30 or +30 or 0030 is a dial the international call prefix for Greece. (00/+) is dial the international call prefix.
Music
 '30 Seconds' is a song by the American singersongwriter Tracy Bonham.
 '30 Minut 'is a single by the tATu group, released in 2001. Also known as' Полчаса' (Half an hour). The authors of the song are Sergey Galoyan, Valery Polienko, Ivan Shapovalov.
 '30 Seconds to Mars' (also Thirty Seconds to Mars, abbreviated as 30STM or TSTM) is an American alternative rock band formed in 1998 in Los Angeles (California).
 '30 Days ', in Spanish '30 days', is a song by the EnglishIrish group The Saturdays.
 '30 Minute Love Affair ', in Spanish '30 minutes of love', is a song performed by the English artist Paloma Faith.
 '30 for 30 Freestyle 'is a song by Canadian singer Drake and American artist Future.
Science
 Zinc is the chemical element in the periodic table that has the symbol Zn and atomic number 30.
Sports
 The best athletes to wear number 30
Nolan Ryan, MLB; Martin Brodeur, NHL; Terrell Davis, NFL; Stephen Curry, NBA; Maury Wills, MLB; Bernard King, NBA
Please write us
If you know something interesting about the number 30 or any natural number (positive integer), please write to us.Number 30 in other languages
How to say or write the number thirty in Spanish, German, French and other languages.
Spanish:  🔊 (número 30)  treinta 
German:  🔊 (Anzahl 30)  dreißig 
French:  🔊 (nombre 30)  trente 
Portuguese:  🔊 (número 30)  trinta 
Chinese:  🔊 (数 30)  三十 
Arabian:  🔊 (عدد 30)  ثلاثون 
Czech:  🔊 (číslo 30)  třicet 
Korean:  🔊 (번호 30)  삼십 
Danish:  🔊 (nummer 30)  tredive 
Hebrew:  (מספר 30)  שלשים 
Dutch:  🔊 (nummer 30)  dertig 
Japanese:  🔊 (数 30)  三十 
Indonesian:  🔊 (jumlah 30)  tiga puluh 
Italian:  🔊 (numero 30)  trenta 
Norwegian:  🔊 (nummer 30)  tretti 
Polish:  🔊 (liczba 30)  trzydzieści 
Russian:  🔊 (номер 30)  тридцать 
Turkish:  🔊 (numara 30)  otuz 
Thai:  🔊 (จำนวน 30)  สามสิบ 
Ukrainian:  🔊 (номер 30)  тридцять 
Vietnamese:  🔊 (con số 30)  ba mươi 
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Number 30 in News
BBC: Postcard from Chile arrives in Dorset after 30 years
The recipient says he was 'slightly confused' when it landed on his doormat three decades late. Aug. 12, 2021 
CNN: Man convicted of murder freed by evidence on file for more than 30 years
A Philadelphia man wrongfully convicted of murder is finally free after spending more than three decades behind bars. July 31, 2021 
France24: Gunmen in Nigeria release nearly 30 students from July kidnapping
Gunmen who seized 121 students at a high school in northwestern Nigeria in early July have released another 28 teenagers, a school official told AFP on Sunday. July 25, 2021 
The Sydney Morning Herald: Xi Jinping becomes first Chinese leader to visit Tibet in 30 years
The visit shows the ruling Chinese Communist Party’s confidence in having established order and gained support in the oncerestive region, analysts say. July 24, 2021 
BBC: England v India: Heather Knight dismissed for 30 after bizarre runout
Watch as Heather Knight is dismissed for 30 after a shot from Amy Jones took a huge deflection off the bowler's boot and into the stumps. July 11, 2021 