263 (number)
From Infogalactic: the planetary knowledge core
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|---|---|---|---|---|
| Cardinal | two hundred sixty-three | |||
| Ordinal | 263rd (two hundred and sixty-third) |
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| 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] and a safe prime.[4]
It is a strictly non-palindromic number.
References
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<references />, or <references group="..." />- ↑ "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 A005385 : Safe primes", The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
