Properties of the Number 12931

Twelve Thousand Nine Hundred Thirty-One

Basics

Value: 12930 → 12931 → 12932

Parity: odd

Prime: No

Previous Prime: 12923

Next Prime: 12941

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 67 × 193

Divisors: 1, 67, 193, 12931

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11001010000011

Octal: 31203

Duodecimal: 7597

Hexadecimal: 3283

Square: 167210761

Square Root: 113.71455491712571

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 length n words on alphabet {0,1} such that the length of every maximal block of 0's (runs) is the same. A243815

Numbers k such that the digits of σ(k) are a permutation of those of k, in base 10. A115920

T(n,k)=Number of length n+4 0..k arrays with some pair in every consecutive five terms totalling exactly k. A246892

Number of anisohedral polyhexes with n cells. A75215

Triangle read by rows: T(n,k) = n⁴ + (n·k)² + k⁴, 1 <= k <= n. A219069

Non-palindromic numbers m such that m·repunit of length k is palindromic for all large enough k. A370053

Odd numbers producing 20 even numbers in the Collatz iteration. A199818

Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 3,1,2,0. A37783

Number of length n+4 0..6 arrays with some pair in every consecutive five terms totalling exactly 6. A246890

Number of length 1+4 0..n arrays with some pair in every consecutive five terms totalling exactly n. A246893