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Properties of the Number 12650

Twelve Thousand Six Hundred Fifty

Basics

Value: 12649 → 12650 → 12651

Parity: even

Prime: No

Previous Prime: 12647

Next Prime: 12653

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

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
Number of interior points that are the intersections of exactly two chords in the configuration A006561(n). A292104
Irregular triangle read by rows: T(n,k) (0 <= k <= n2) are coefficients of exact wrapping probability for site percolation on an n X n 2D square lattice with periodic boundary conditions. This is for the probability that it wraps around the vertical dimension. A366463
Irregular triangle read by rows: T(n,k) (0 <= k <= n2) are coefficients of exact spanning probability for site percolation along the second dimension for an n X n 2D nnsquare lattice with periodic boundary conditions. A366467
Binomial coefficients binomial(2·n-3,4). A53126