Properties of the Number -12650

Twelve Thousand Six Hundred Fifty

Basics

Value: -12651 → -12650 → -12649

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 ² × 11 × 23

Divisors: 1, 2, 5, 10, 11, 22, 23, 25, 46, 50

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11000101101010

Octal: -30552

Duodecimal: -73A2

Hexadecimal: -316a

Square: 160022500

Square Root: 112.47221879201993

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

Expansion of ∑_k>0 x^2·k/(1+x^k)⁵. A363613

Expansion of the series reversion of ∑_n>=1 x^n². A259938

G.f. A(x) satisfies A(x) = 1 + x·A(x)³ - x²*A(x)⁵. A367027

First differences of coefficients of g.f. (1-x)²⁴. A78488

Binomial coefficient binomial(n,4) = n*(n-1)*(n-2)*(n-3)/24. A332

Number of intersections of diagonals in the interior of a regular n-gon. A6561

Twice-partitioned numbers where the first partition is strict and the latter partitions are constant. A279786

Irregular triangle read by rows: T(n,k) (0 <= k <= n²) are coefficients of cluster density function for site percolation on an n X n 2D triangular lattice with periodic boundary conditions. A365940

Numbers k such that k and k² have the same set of digits. A29793

9-gonal (or enneagonal) pyramidal numbers: a(n) = n*(n+1)*(7·n-4)/6. A7584