60 (sixty) is the natural number following 59 and preceding 61. Being thrice twenty, 60 is called "three score" in some older literature.
In mathematicsSixty is a composite number with divisors 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, making it also a highly composite number. Because 60 is the sum of its unitary divisors (excluding itself), it is a unitary perfect number. Being ten times a perfect number, 60 is a semiperfect number.
60 is the smallest number divisible by the numbers 1 to 6. (There is no smaller number divisible by the numbers 1 to 5). 60 is the smallest number with exactly 12 divisors.
This number is the sum of a pair of twin primes (29 + 31), as well as the sum of four consecutive primes (11 + 13 + 17 + 19). It is adjacent to two prime numbers (59,61).
In geometry, 60 is the number of seconds in a minute, and the number of minutes in a degree. In normal space, the 3 interior angles of an equilateral triangle each measure 60 degrees, adding up to 180 degrees.
The Babylonian number system had a base of sixty. The number system in the Mali Empire was apparently also based on sixty (this is reflected in the counting system of the Maasina Fulfulde, a variant of the Fula language spoken in contemporary Mali). A number system with base-sixty is called the sexagesimal (original meaning of sexagesimal is sixtieth).
The sexagenary cycle plays a role in Chinese calendar and numerology. (Originally, sexagenary means sixty each, also centenary means one hundred each.)
Because 60 is divisible by the sum of its digits in base 10, it is a Harshad number.
In and in lang-la sexagena equals 60 = 5 dozen = 1/2 small gross. This quantity was used in international medieval treaties e.g. for ransom of captured Teutonic Knights.
- Messier object M60, a magnitude 10.5 galaxy in the constellation Virgo
- The New General Catalogue object NGC 60, a spiral galaxy in the constellation Pisces
- The Saros number of the solar eclipse series which began on -1020 May 18 and ended on 260 June 26. The duration of Saros series 60 was 1280.1 years, and it contained 72 solar eclipses. The Saros number of the lunar eclipse series which began on -700 March 8 and ended on 616 May 7. The duration of Saros series 60 was 1316.2 years, and it contained 74 lunar eclipses.
In other fieldsSixty is:
- In time, the number of seconds in a minute, and the number of minutes in an hour.
- 60 Minutes, a CBS investigative television show
- Sixty Minute Man was a TV show starring Kenny Baumann
- The number of the European route E60 from Brest, France, to Constanţa, Romania
- A common speed limit, in miles per hour, for freeways in many U.S. states
- A common speed limit, in kilometers per hour, in urban areas in Russia
- In years of marriage, the diamond wedding anniversary
- The maximum number of marbles (game pieces) in Chinese checkers
- The code for international direct dial calls to Malaysia
- The highest obtainable level on World of Warcraft (not including World of Warcraft: The Burning Crusade)
- Studio 60 on the Sunset Strip was a TV show on NBC (2006-07)
- Gone in Sixty Seconds is a movie starring Nicholas Cage
- Miss Sixty is a women's apparel brand
- The total number of cards in the game Racko
- New York Yankees Babe Ruth hit 60 home runs in 1927
- Atlanta Falcons Tommy Nobis uniform #60
- Philadelphia Eagles Chuck Bednarik uniform #60
- NBA: Gilbert Arenas set a Washington Wizards franchise record scoring 60 points on Dec. 17, 2006 (leading the Wizards to a 147-141 win over the Los Angeles Lakers).
threescore in Catalan: Seixanta
threescore in Chuvash: 60 (хисеп)
threescore in Corsican: 60 (numeru)
threescore in Danish: 60 (tal)
threescore in German: Sechzig
threescore in Spanish: Sesenta
threescore in Esperanto: Sesdek
threescore in Basque: Hirurogei
threescore in French: 60 (nombre)
threescore in Gan Chinese: 60
threescore in Korean: 60
threescore in Interlingua (International Auxiliary Language Association): 60 (numero)
threescore in Italian: 60 (numero)
threescore in Hebrew: 60 (מספר)
threescore in Haitian: 60 (nonm)
threescore in Kurdish: Şêst
threescore in Lithuanian: 60 (skaičius)
threescore in Lombard: Nümar 60
threescore in Hungarian: 60 (szám)
threescore in Malay (macrolanguage): 60 (nombor)
threescore in Dutch: 60 (getal)
threescore in Japanese: 60
threescore in Norwegian: 60 (tall)
threescore in Norwegian Nynorsk: Talet 60
threescore in Polish: 60 (liczba)
threescore in Portuguese: Sessenta
threescore in Russian: 60 (число)
threescore in Simple English: Sixty
threescore in Slovenian: 60 (število)
threescore in Swedish: 60 (tal)
threescore in Thai: 60
threescore in Vietnamese: 60 (số)
threescore in Wu Chinese: 60
threescore in Yiddish: 60 (נומער)
threescore in Contenese: 60
threescore in Chinese: 60