79 (number)
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79 is the natural number following 78 and preceding 80.
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| Cardinal | seventy-nine | ||
| Ordinal | 79th (seventy-ninth) | ||
| Factorization | <math>prime<math> | ||
| Roman numeral | LXXIX | ||
| Binary | 1001111 | ||
| Hexadecimal | 4F | ||
In mathematics
Seventy-nine is the 22nd prime number. The next is eighty-three. Seventy-nine is a permutable prime, with ninety-seven. 79 is a strictly non-palindromic number, it is not palindromic in any base from base 2 to base 77.
In science
- The atomic number of gold
In astronomy,
- Messier object M79, a magnitude 8.5 globular cluster in the constellation Lepus
- The New General Catalogue object (http://www.ngcic.org/) NGC 79, a galaxy in the constellation Andromeda
- The Saros number (http://sunearth.gsfc.nasa.gov/eclipse/SEsaros/SEsaros1-175.html) of the solar eclipse series which began on -434 May 21 and ended on 828 June 16. The duration of Saros series 79 was 1262.1 years, and it contained 71 solar eclipses.
- The Saros number (http://sunearth.gsfc.nasa.gov/eclipse/LEsaros/LEsaros1-175.html) of the lunar eclipse series which began on -150 February 16 and ended on 1166 April 12. The duration of Saros series 79 was 1316.2 years, and it contained 74 lunar eclipses.
In other fields
Seventy-nine is also:
- The designation of Interstate 79, a freeway that runs from West Virginia to Pennsylvania.
- The number of original Star Trek episodes, not counting the first pilot, "The Cage", which was enclosed into "The Menagerie".
- The year AD 79, 79 BC, or 1979.
ko:79 ia:79 it:Settantanove ja:79 nn:Talet 79 sv:79 (tal) zh:79