Properties of the Number 12738

Twelve Thousand Seven Hundred Thirty-Eight

Basics

Value: 12737 → 12738 → 12739

Parity: even

Prime: No

Previous Prime: 12721

Next Prime: 12739

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 11 × 193

Divisors: 1, 2, 3, 6, 11, 22, 33, 66, 193, 386

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000111000010

Octal: 30702

Duodecimal: 7456

Hexadecimal: 31c2

Square: 162256644

Square Root: 112.86274850454423

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

Numbers k such that 2^k + 15 is prime. A57197

Shiraishi numbers: a parametrized family of solutions c to the Diophantine equation a³ + b³ + c³ = d³ with d = c+1. A226903

Expansion of (-1 + ∏_k>=1 1 / (1 + (-x)^k))⁶. A341245

"AFK" (ordered, size, unlabeled) transform of 2,2,2,2,... A32005

Least k such that prime(n) is the smallest prime p for which k² + p² is also prime, or 0 if none. A263466

Numbers k with the property that p = k² - 13 and q = k² + 13 are consecutive primes. A248785

Leading diagonal of A083173. A83174

Number of permutations of 2 copies of 1..n with all adjacent differences <= 1 in absolute value. A177282

Least number k >= 0 such that (n!+k)/n is prime. A245695

a(n) = 3*(n+1)*(9·n+4). A304503