113 (number)
Encyclopedia : 1 : 11 : 113 : 113 (number)
113 is the natural number following 112 and preceding 114.
| Cardinal | one hundred [and] thirteen |
| Ordinal | 113th |
| Factorization | prime |
| Roman numeral | CXIII |
| Binary | 1110001 |
| Hexadecimal | 71 |
In mathematics
One hundred [and] thirteen is the 30th prime number, following 109 and preceding 127, a Sophie Germain prime, a Chen prime, a primeval number, and a permutable prime with 131 and 311. 113 is an Eisenstein prime with no imaginary part and real part of the form [3n - 1].It is a highly cototient number and a centered square number. 355/113 approximates pi to seven decimal places, with an error of less than 1/1133.
In other fields
- The atomic number of an element temporarily called ununtrium.
- The number of surat al-Falaq in the Qur'an.
- The emergency telephone number in Italy.
- Part of an in-joke on some Disney movies. See A113.
- The French hip hop group 113.
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.