59 (number) Guide, Meaning , Facts, Information and Description
59 is the natural number following 58 and preceding 60.
| Cardinal | fifty-nine |
| Ordinal | 59th (fifty-ninth) |
| Factorization | prime |
| Roman numeral | LIX |
| Binary | 111011 |
| Hexadecimal | 3B |
Fifty-nine is the 17th smallest prime number. The next is sixty-one, with which it comprises a twin prime. 59 is an irregular prime and a safe prime.
There are 59 stellations of the icosahedron. These are discussed in H. S. M. Coxeter, P. Du Val, H. T. Flather, and J. F. Petrie's book The Fifty-Nine Icosahedra.
Fifty-nine is also:
- The atomic number of praseodymium, a lanthanide.
- The designation of Interstate 59, a freeway that runs from Louisiana to Georgia.
- The year AD 59, 59 BC, or 1959.
- Approximately the number of days in two lunar months.
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