Properties of the Number 12660

Twelve Thousand Six Hundred Sixty

Basics

Value: 12659 → 12660 → 12661

Parity: even

Prime: No

Previous Prime: 12659

Next Prime: 12671

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 5 × 211

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11000101110100

Octal: 30564

Duodecimal: 73B0

Hexadecimal: 3174

Square: 160275600

Square Root: 112.51666543228163

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 distinct edges among all circles that can be constructed on vertices of an n-sided regular polygon, using only a compass. A359047

Number of directed multigraphs with loops on 3 nodes with n arcs. A50927

Number of partitions of n into terms of (1,2)-Ulam sequence, cf. A002858. A199016

Number of 2 X 2 matrices having all elements in {-n,...,n} and determinant 1. A209982

Consecutive states of the linear congruential pseudo-random number generator (10924·s+11830) mod (2¹⁵+1) when started at s=1. A384150

Triangle of number of permutations of [n] with 0 successions, by number of rises. A46740

Coefficients in a certain Poincaré series [or Poincare series]. A98705

Sum over all partitions λ of n of ∑_p:λ p^m(p,λ), where m(p,λ) is the multiplicity of part p in λ. A213180

Number of compositions of n having exactly eight fixed points. A240743

E.g.f. cos(log(cos(x))), even powers only. A12003