Properties of the Number 12269

Twelve Thousand Two Hundred Sixty-Nine

Basics

Value: 12268 → 12269 → 12270

Parity: odd

Prime: Yes

Previous Prime: 12263

Next Prime: 12277

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 12269

Divisors: 1, 12269

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111111101101

Octal: 27755

Duodecimal: 7125

Hexadecimal: 2fed

Square: 150528361

Square Root: 110.76551810017412

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

Number of integer compositions of n whose leaders of weakly decreasing runs are strictly decreasing. A374746

Lexicographically earliest infinite sequence of distinct positive numbers with the property that every positive integer is a sum of distinct terms (see algorithm below). A75058

Denominators of upper primes-only best approximates (POBAs) to sqrt(2); see Comments. A265775

Zeros in Cald's sequence: positions k such that A006509(k) = 0. A112877

Base-10 representation of A261200. A261201

a(n+1) = next smallest prime beginning with a(n) when written in binary, starting with 2. A55011

a(1) = 2; for n > 1, a(n) = largest prime not exceeding a(1) + ... + a(n-1). A68524

Primes q = 4·p+1, where p == 2 (mod 5) is also prime. A221981

Sum of previous term and preceding non-divisors. A120610

Primes congruent to 22 mod 37. A142131