Properties of the Number 31431

Thirty-One Thousand Four Hundred Thirty-One

Basics

Value: 31430 → 31431 → 31432

Parity: odd

Prime: No

Previous Prime: 31397

Next Prime: 31469

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 10477

Divisors: 1, 3, 10477, 31431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101011000111

Octal: 75307

Duodecimal: 16233

Hexadecimal: 7ac7

Square: 987907761

Square Root: 177.2879014484632

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

Smallest number at distance 2n from nearest prime. A51728

Smallest number at distance n from nearest prime. A51652

Lonely numbers: distance to closest prime sets a new record. A51650

a(n) = 2·a(n-1) + a(n-2) - a(n-3) + a(n-4), with a(1) = 0, a(2) = 3, a(3) = 5 and a(4) = 17. A130844

a(n) is the smallest number for which the prime distance A051699 is equal to n. A77019

Smallest number at distance 2n from nearest prime (variant 2). A132860

List of indices where the maximum of {A316190(j) | j<=n} increases. A316191

Least positive k such that the distance from k to closest prime = n. A79582

Smallest number at distance 2n from nearest prime (variant 3). A133490

Number of partitions of n such that the m(number of distinct parts) is a part, where m = multiplicity. A240307