263 (number)

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← 262 263 264 →
Cardinaltwo hundred sixty-three
Ordinal263rd
(two hundred sixty-third)
Factorizationprime
Primeyes
Greek numeralΣΞΓ´
Roman numeralCCLXIII
Binary1000001112
Ternary1002023
Senary11156
Octal4078
Duodecimal19B12
Hexadecimal10716

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

  1. ^ Sloane, N. J. A. (ed.). "Sequence A006562 (Balanced primes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  2. ^ Sloane, N. J. A. (ed.). "Sequence A000928 (Irregular primes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  3. ^ Sloane, N. J. A. (ed.). "Sequence A104272 (Ramanujan primes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  4. ^ Sloane, N. J. A. (ed.). "Sequence A005385 (Safe primes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
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