Properties of the Number 31492

Thirty-One Thousand Four Hundred Ninety-Two

Basics

Value: 31491 → 31492 → 31493

Parity: even

Prime: No

Previous Prime: 31489

Next Prime: 31511

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 7873

Divisors: 1, 2, 4, 7873, 15746, 31492

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101100000100

Octal: 75404

Duodecimal: 16284

Hexadecimal: 7b04

Square: 991746064

Square Root: 177.45985461506498

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

G.f.: 1 + 1¹*x/(1 + 2²*x/(1 + 3³*x/(1 + 4⁴*x/(1 + 5⁵*x/(1 + ...))))). A343427

Coefficient of·in the reduction by x²->x+1 of the polynomial p(n,x) defined below in Comments. A192759

Sum of the cubes of the first n cubefree numbers. A114286

Numbers n such that the sum of the proper divisors of n and n+1 equals either n or n+1. A130776

Decimal expansion of the smallest dihedral angle, in radians, in a sphenomegacorona (Johnson solid J₈₈). A390630

Numbers whose base-9 representation has the same number of 0's as 8's. A31492