Number 28
Number 28 spell 🔊, write in words: twenty-eight . Ordinal number 28th is said 🔊 and write: twenty-eighth. The meaning of number 28 in Maths: Is Prime? Factorization and prime factors tree. The square root and cube root of 28. What is 28 in computer science, numerology, codes and images, writing and naming in other languages. Other interesting facts, videos, news related to 28.
What is 28 in other units
The number 28 converted to a Mayan number is | |
Decimal and Mayan number conversions. |
Weight conversion
28 kilograms (kg) = 61.7 pounds (lbs)
28 pounds (lbs) = 12.7 kilograms (kg)
Length conversion
28 kilometers (km) equals to 17.398 miles (mi).
28 miles (mi) equals to 45.062 kilometers (km).
28 meters (m) equals to 45.062 feet (ft).
28 feet (ft) equals 8.535 meters (m).
28 centimeters (cm) equals to 11.0 inches (in).
28 inches (in) equals to 71.1 centimeters (cm).
Temperature conversion
28° Fahrenheit (°F) equals to -2.2° Celsius (°C)
28° Celsius (°C) equals to 82.4° Fahrenheit (°F)
Power conversion
28 Horsepower (hp) equals to 20.59 kilowatts (kW)
28 kilowatts (kW) equals to 38.07 horsepower (hp)
Codes and images of the number 28
Number 28 morse code: ..--- ---..Sign language for number 28:
Number 28 in braille:
Images of the number | |
Image (1) of the number | Image (2) of the number |
More images, other sizes, codes and colors ... | |
Number 28 infographic |
Photo of number 28
Year 28 AD
- Emperor Ming of Han was born.
- The Frisians negotiated a treaty with the Romans at the River Rhine, avoiding conquest.
- King Onjo of Baekje died and King Daru of Baekje succeeded to the throne of Baekje. (Korea).
Gregorian, Hebrew, Islamic, Persian and Buddhist year (calendar)
Gregorian year 28 is Buddhist year 571.Buddhist year 28 is Gregorian year 515 a. C.
Gregorian year 28 is Islamic year -612 or -611.
Islamic year 28 is Gregorian year 648 or 649.
Gregorian year 28 is Persian year -595 or -594.
Persian year 28 is Gregorian 649 or 650.
Gregorian year 28 is Hebrew year 3788 or 3789.
Hebrew year 28 is Gregorian year 3732 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. 28
Multiplications
Multiplication table of 28
28 multiplied by two equals 56 (28 x 2 = 56).
28 multiplied by three equals 84 (28 x 3 = 84).
28 multiplied by four equals 112 (28 x 4 = 112).
28 multiplied by five equals 140 (28 x 5 = 140).
28 multiplied by seven equals 196 (28 x 7 = 196).
28 multiplied by eight equals 224 (28 x 8 = 224).
28 multiplied by nine equals 252 (28 x 9 = 252).
Fractions: decimal fraction and common fraction
Fraction table of 28
Half of 28 is 14 (28 / 2 = 14).
One third of 28 is 9,3333 (28 / 3 = 9,3333 = 9 1/3).
One quarter of 28 is 7 (28 / 4 = 7).
One fifth of 28 is 5,6 (28 / 5 = 5,6 = 5 3/5).
One seventh of 28 is 4 (28 / 7 = 4).
One eighth of 28 is 3,5 (28 / 8 = 3,5 = 3 1/2).
One ninth of 28 is 3,1111 (28 / 9 = 3,1111 = 3 1/9).
Calculator
28 | ||||
Advanced math operations
Is Prime?
The number 28 is not a prime number. The closest prime numbers are 23, 29.
28th prime number in order is 107.
Factorization and factors (dividers)
The prime factors of 28 are 2 * 2 * 7
The factors of 28 are 1 , 2 , 4 , 7 , 14 , 28
Total factors 6.
Sum of factors 56 (28).
Prime factor tree
Powers
The second power of 28^{2} is 784.
The third power of 28^{3} is 21.952.
Roots
The square root √28 is 5,291503.
The cube root of ^{3}√28 is 3,036589.
Logarithms
The natural logarithm of No. ln 28 = log_{e} 28 = 3,332205.
The logarithm to base 10 of No. log_{10} 28 = 1,447158.
The Napierian logarithm of No. log_{1/e} 28 = -3,332205.
Trigonometric functions
The cosine of 28 is -0,962606.The sine of 28 is 0,270906.
The tangent of 28 is -0,28143.
Number 28 in Computer Science
Code type | Code value |
---|---|
Unix time | Unix time 28 is equal to Thursday Jan. 1, 1970, 12:28 a.m. GMT |
IPv4, IPv6 | Number 28 internet address in dotted format v4 0.0.0.28, v6 ::1c |
28 Decimal | = 11100 Binary |
28 Decimal | = 1001 Ternary |
28 Decimal | = 34 Octal |
28 Decimal | = 1C Hexadecimal (0x1c hex) |
28 BASE64 | Mjg= |
28 MD5 | 33e75ff09dd601bbe69f351039152189 |
28 SHA1 | 0a57cb53ba59c46fc4b692527a38a87c78d84028 |
28 SHA224 | faf2c49e22e3fdae824e8e5d62956a5f50f16cd4d8f47948b787a582 |
28 SHA256 | 59e19706d51d39f66711c2653cd7eb1291c94d9b55eb14bda74ce4dc636d015a |
28 SHA384 | 40161b3cdbeffadee863b7e211c444f8e0f99fc051c1666c9fdd8a2aad1354dc1264f346b766064687b0ab6d8c441608 |
More SHA codes related to the number 28 ... |
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Numerology 28
The meaning of the number 8 (eight), numerology 8
Character frequency 8: 1
The meaning of the number 2 (two), numerology 2
Character frequency 2: 1
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.
Interesting facts about the number 28
Asteroids
- (28) Bellona is asteroid number 28. It was discovered by K. T. R. Luther from Düsseldorf-Bilk Observatory on 3/1/1854.
Areas, mountains and surfaces
- The total area of Alexander Island is 18,950 square miles (49,070 square km). Country None (Antarctic territorial claims by Argentina (partial), Chile and United Kingdom). 28th largest island in the world.
Distances between cities
- There is a 28 miles (45 km) direct distance between Bekasi (Indonesia) and Bogor (Indonesia).
- There is a 18 miles (28 km) direct distance between Delhi (India) and Farīdābād (India).
- There is a 18 miles (28 km) direct distance between Ecatepec (Mexico) and Iztapalapa (Mexico).
- There is a 28 miles (45 km) direct distance between Fukuoka-shi (Japan) and Kitakyūshū (Japan).
- More distances between cities ...
- There is a 18 miles (28 km) direct distance between Klang (Malaysia) and Kuala Lumpur (Malaysia).
- There is a 18 miles (28 km) direct distance between Kobe (Japan) and Sakai (Japan).
- There is a 18 miles (28 km) direct distance between Kowloon (Hong Kong) and Shenzhen (China).
Games
- Pokémon Sandslash (Sandopan, Sandpan) is a Pokémon number # 028 of the National Pokédex. Sandslash is a ground-type Pokémon in the first generation. It is a Field Egg group Pokémon. The indexes ontros of Sandslash are Johto index 049 , Centro Kalos index 098 - Pokédex Mountain Area, Teselia index 114 , Hoenn index 113 .
History and politics
- ISO 3166 country codes for Antigua and Barbuda are AG, ATG, 028 and internet top-level domain is .ag
- United Nations Security Council Resolution number 28, adopted 6 August 1947. Sub-committee relating to the 'Greek Question'. Resolution text.
In other fields
- Hate Symbol: 28 is the alphanumeric code of white supremacy for Blood & Honor, an international group of skinheads.The list of evil numbers.
Mathematics
- 28 is the number of dominoes in standard domino sets
- 28 is the only even perfect number of the form x^{3} + 1
- 28 is the 2^{nd} perfect number.
Music
- A.L.A - 28
Science
- Nickel is the chemical element in the periodic table that has the symbol Ni and atomic number 28.
Sports
- The best athletes to wear number 28
Marshall Faulk, NFL; Bert Blyleven, MLB; Darrell Green, NFL
Tv, movies and cinematography
- Movie: 28 Days Later Year: 2002 Runtime: 113 Director: Danny Boyle With: Cillian Murphy; Naomie harris
- Movie: 28 Weeks Later ... (28 Weeks Later) Year: 2007 Duration: 99 Director: Juan Carlos Fresnadillo With: Robert Carlyle; Rose byrne
Please write us
If you know something interesting about the number 28 or any natural number (positive integer), please write to us.№ 28 in other languages
Spanish: | 🔊 (número 28) | veintiocho |
German: | 🔊 (Nummer 28) | achtundzwanzig |
French: | 🔊 (nombre 28) | vingt-huit |
Portuguese: | 🔊 (número 28) | vinte e oito |
Hindi: | 🔊 (संख्या 28) | अट्ठाईस |
Chinese: | 🔊 (数 28) | 二十八 |
Arabian: | 🔊 (عدد 28) | ثمانية و عشرون |
Czech: | 🔊 (číslo 28) | dvacet osm |
Korean: | 🔊 (번호 28) | 이십팔 |
Danish: | 🔊 (nummer 28) | otteogtyve |
Hebrew: | (מספר 28) | עשרים ושמנה |
Dutch: | 🔊 (nummer 28) | achtentwintig |
Japanese: | 🔊 (数 28) | 二十八 |
Indonesian: | 🔊 (jumlah 28) | dua puluh delapan |
Italian: | 🔊 (numero 28) | ventotto |
Norwegian: | 🔊 (nummer 28) | tjue-åtte |
Polish: | 🔊 (liczba 28) | dwadzieścia osiem |
Russian: | 🔊 (номер 28) | двадцать восемь |
Turkish: | 🔊 (numara 28) | yirmisekiz |
Thai: | 🔊 (จำนวน 28) | ยี่สิบแปด |
Ukrainian: | 🔊 (номер 28) | двадцять вiсiм |
Vietnamese: | 🔊 (con số 28) | hai mươi tám |
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Number 28 in News
BBC: Celtic ruler's 2,000-year-old ring kept in cupboard for 28 years
The "jaw-dropping" ring, originally unearthed in a field in 1994, could now fetch up to £30,000. Nov. 10, 2022 |
NyTimes: Your Tuesday Briefing: China Charges 28 People in Beating of Women
Plus the controversy over seabed mining and the geopolitical drama surrounding Taiwan’s microchips ... Aug. 29, 2022 |
France24: As it happened: Over 2.8 million have fled Ukraine, EU agrees on fourth set of Russian sanctions
The number of refugees who have fled Ukraine since the Russian invasion began on February 24 has topped 2.8 million, the United Nations said Monday, as the two countries held a fourth round of talks in a bid to end the devastating war. FRANCE 24 brought you Monday's events as … March 13, 2022 |
France24: Ecuador: Oil spill in Amazon rainforest 'could have been avoided'
More than a million litres of oil spilled in the Amazon rainforest in Ecuador after a pipeline ruptured on January 28. The company that manages the pipeline said it was damaged by falling rocks, brought down by erosion and heavy rain, claiming that the incident "could not have been foreseen". … Feb. 21, 2022 |
BBC: West Midlands rocked by earthquake
The 2.8 magnitude quake could be felt over a 12-mile radius from the Walsall epicentre. Feb. 22, 2022 |