Properties of the Number 12257

Twelve Thousand Two Hundred Fifty-Seven

Basics

Value: 12256 → 12257 → 12258

Parity: odd

Prime: No

Previous Prime: 12253

Next Prime: 12263

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 7 × 17 × 103

Divisors: 1, 7, 17, 103, 119, 721, 1751, 12257

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10111111100001

Octal: 27741

Duodecimal: 7115

Hexadecimal: 2fe1

Square: 150234049

Square Root: 110.71133636624572

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 for which (6+k!)/6 is prime. A139063

a(n) = n*(5·n² - 3)/2. A63522

Number of 5-colorable (i.e., chromatic number <= 5) simple graphs on n nodes. A76317

The 360 degree spoke (or ray) of a hexagonal spiral of Ulam. A244803

Nonnegative values·of solutions (x, y) to the Diophantine equation x²+(x+103)² = y². A157119

Number of partitions p = [x(1), ..., x(k)], where x(1) >= x(2) >= ... >= x(k), of n such that max(x(i) - x(i-1)) <= number of parts of p. A241829

Expansion of ∏_k>=1 ((1 + x^5·k) / (1 - x^k))^k. A285461

Number of strict partitions of 2n + 1 having 1 more even part than odd, so that there is at least one ordering of the parts in which the even and odd parts alternate, and the first and last terms are even. A239873

a(n) = 10·n² + 7. A61722

A bisection of A063522. A160674