263 (number)
| ||||
|---|---|---|---|---|
| Cardinal | two hundred sixty-three | |||
| Ordinal |
263rd (two hundred and sixty-third) | |||
| Factorization | 263 | |||
| Prime | yes | |||
| Roman numeral | CCLXIII | |||
| Binary | 1000001112 | |||
| Ternary | 1002023 | |||
| Quaternary | 100134 | |||
| Quinary | 20235 | |||
| Senary | 11156 | |||
| Octal | 4078 | |||
| Duodecimal | 19B12 | |||
| Hexadecimal | 10716 | |||
| Vigesimal | D320 | |||
| Base 36 | 7B36 | |||
263 is the natural number between 262 and 264. It is also a prime number.
In mathematics
263 is a balanced prime,[1] an irregular prime,[2] a Ramanujan prime,[3] a Chen prime,[4] and a safe prime.[5]
It is also a strictly non-palindromic number and a happy number.[6]
References
- ↑ "Sloane's A006562 : Balanced primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ↑ "Sloane's A000928 : Irregular primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ↑ "Sloane's A104272 : Ramanujan primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ↑ "Sloane's A109611 : Chen primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-04-21.
- ↑ "Sloane's A005385 : Safe primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ↑ "Sloane's A007770 : Happy numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-04-21.
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