Properties of the Number 233

Two Hundred Thirty-Three

Basics

Value: 232 → 233 → 234

Parity: odd

Prime: Yes

Previous Prime: 229

Next Prime: 239

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 233

Divisors: 1, 233

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101001

Octal: 351

Duodecimal: 175

Hexadecimal: e9

Square: 54289

Square Root: 15.264337522473747

Classification

Fibonacci: Yes

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

The prime numbers. A40

Fibonacci numbers: F(n) = F(n-1) + F(n-2) with F(0) = 0 and F(1) = 1. A45

Prime numbers at the beginning of the 20th century (today 1 is no longer regarded as a prime). A8578

Primes of the form x² + xy + 2y², with·and y nonnegative. A106856

Pythagorean primes: primes of the form 4·k + 1. A2144

Sophie Germain primes p: 2p+1 is also prime. A5384

Odd primes. A65091

a(n) = 3·a(n-1) - a(n-2) for n >= 2, with a(0) = a(1) = 1. A1519

Numbers in base 4. A7090

a(n) = 4·n + 1. A16813

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