Properties of the Number -131396

One Hundred Thirty-One Thousand Three Hundred Ninety-Six

Basics

Value: -131397 → -131396 → -131395

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 107 × 307

Divisors: 1, 2, 4, 107, 214, 307, 428, 614, 1228, 32849

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100000000101000100

Octal: -400504

Duodecimal: -64058

Hexadecimal: -20144

Square: 17264908816

Square Root: 362.48586179325673

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

a(n) = ∑_{k divides n} (n/k)^k. A55225

a(n) = ∑_d∣n rad(d)^n/d, where rad(d) = A007947(d) is the squarefree kernel of d. A95001

a(n) = n² + 2^n-1. A362438

a(n) is the number of subsets·of Z_n such that #x * #y = n and x + y = Z_n for some subset y of Z_n. A374770