Properties of the Number 12566

Twelve Thousand Five Hundred Sixty-Six

Basics

Value: 12565 → 12566 → 12567

Parity: even

Prime: No

Previous Prime: 12553

Next Prime: 12569

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 61 × 103

Divisors: 1, 2, 61, 103, 122, 206, 6283, 12566

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000100010110

Octal: 30426

Duodecimal: 7332

Hexadecimal: 3116

Square: 157904356

Square Root: 112.09817126073021

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

n satisfying σ(n+1) = σ(n-1). A55574

Sphenic numbers (A007304) whose neighbors are sphenic. A248202

Record values in A361967. A361971

The middle point of row n in binary beanstalk related sequences A179016, A218602, A218616, A233270, A233271. A233268

Number of zig-zag paths from top to bottom of a rectangle of width 11 with 2n-1 rows whose color is not that of the top right corner. A153373

Triangle, read by rows, that transforms the (n+m)-dimensional partitions of n into the (n+m+1)-dimensional partitions of n, for fixed m. A96801

Number of zig-zag paths from top to bottom of a rectangle of width 11 with n rows whose color is not that of the top right corner. A153370

Molien series for alternating group Alt₈ (or A₈). A8631

Numbers k such that σ(k-1) divides σ(k+1). A67130

Number of n X 3 0..2 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other. A201272