Properties of the Number -5131

One Hundred Thirty-One

Basics

Value: -5132 → -5131 → -5130

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 7 × 733

Divisors: 1, 7, 733, 5131

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1010000001011

Octal: -12013

Duodecimal: -2B77

Hexadecimal: -140b

Square: 26327161

Square Root: 71.63099887618489

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

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 345", based on the 5-celled von Neumann neighborhood. A271296

"Half-Catalan numbers": a(n) = ∑_{k=1..floor(n/2)} a(k)*a(n-k) with a(1) = 1. A992

Number of strict compositions of n with all adjacent parts (x, y) satisfying x < 2y and y < 2x. A342341

a(1) = 7; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A74343

Numbers that are the sum of four positive cubes in four or more ways. A343971

Numbers that are the sum of four positive cubes in five or more ways. A343987

Integers that are squarefree and also the sum of first k squarefrees for some k. A13932

Concentric 15-gonal numbers. A195046

a(n) is the number of n-lettered words in the alphabet {1, 2, 3} with as many occurrences of the substring (consecutive subword) [1, 1] as of [2, 3]. A211278

Numbers that are the sum of four positive cubes in exactly five ways. A343986