Properties of the Number 269

Two Hundred Sixty-Nine

Basics

Value: 268 → 269 → 270

Parity: odd

Prime: Yes

Previous Prime: 263

Next Prime: 271

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 269

Divisors: 1, 269

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100001101

Octal: 415

Duodecimal: 1A5

Hexadecimal: 10d

Square: 72361

Square Root: 16.401219466856727

Classification

Fibonacci: No

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

Lesser of twin primes. A1359

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

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

Odd primes. A65091

Twin primes. A1097

Ramanujan primes R_n: a(n) is the smallest number such that if x >= a(n), then π(x) - π(x/2) >= n, where π(x) is the number of primes <= x. A104272

Primes with primitive root 2. A1122

Primes congruent to 1 or 2 modulo 4; or, primes of form x² + y²; or, -1 is a square mod p. A2313

Primes of the form 3n-1. A3627