Properties of the Number 12926

Twelve Thousand Nine Hundred Twenty-Six

Basics

Value: 12925 → 12926 → 12927

Parity: even

Prime: No

Previous Prime: 12923

Next Prime: 12941

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 23 × 281

Divisors: 1, 2, 23, 46, 281, 562, 6463, 12926

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001001111110

Octal: 31176

Duodecimal: 7592

Hexadecimal: 327e

Square: 167081476

Square Root: 113.69256791892775

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 regions in regular n-gon with all diagonals drawn. A7678

Number of integer compositions of n whose leaders of weakly increasing runs are strictly increasing. A374634

Indices of primes followed by a gap (distance to next larger prime) of 44. A320720

4-dimensional analog of centered polygonal numbers. Also number of regions created by sides and diagonals of a convex n-gon in general position. A6522

Numbers k with property that for every base b >= 2, there is a number m such that m+s(m) = k, where s(m) = sum of digits in the base-b expansion of m. A230624

Diagonal in array of n-gonal numbers A081422. A81438

Number of partitions p of n such that mean(p) <= multiplicity(min(p)). A240204

MM-numbers of capturing, non-nesting multiset partitions (with empty parts allowed). A326260

a(n) = A007678(2·n+1). A341735

The least k such that A063994(k) = ∏_{primes p dividing k} gcd(p-1, k-1) = n, or 0 if there's no such k. A64234