Properties of the Number -4231

Two Hundred Thirty-One

Basics

Value: -4232 → -4231 → -4230

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 4231

Divisors: 1, 4231

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000010000111

Octal: -10207

Duodecimal: -2547

Hexadecimal: -1087

Square: 17901361

Square Root: 65.04613747179766

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

L.g.f.: log(∏_k>=1 (1 + x^k/(1 + x))) = ∑_k>=1 a(k)*x^k/k. A307762

a(n) = 2·n² - 1. A56220

Number of partially ordered sets ("posets") with n labeled elements (or labeled acyclic transitive digraphs). A1035

Number of partitions of n into nonprime parts. A2095

Primes of the form 2·n² - 1. A66436

Decimal representation of permutations of lengths 1, 2, 3, ... arranged lexicographically. A30299

First member of a prime triple in a 2p-1 progression. A57326

Lower prime of a difference of 10 between consecutive primes. A31928

Number of integer partitions of n with no pair of consecutive parts relatively prime. A328187

Number of primes <= n!. A3604