Properties of the Number -31488

Thirty-One Thousand Four Hundred Eighty-Eight

Basics

Value: -31489 → -31488 → -31487

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ⁸ × 3 × 41

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111101100000000

Octal: -75400

Duodecimal: -16280

Hexadecimal: -7b00

Square: 991494144

Square Root: 177.44858410255068

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

Hankel transform of A128057. A128056

Number of ways to write n as an orderless product of orderless sums. A318949

Number of ways to choose an integer partition of each factor in a factorization of n. A318948

Smallest number that is n times the product of its digits or 0 if impossible. A56770

Coefficient of q¹ in ν(n), where ν(0)=1, ν(1)=b and, for n >= 2, ν(n) = b*ν(n-1) + λ*(1 + q + q² + ... + q^n-2)*ν(n-2) with (b,λ)=(2,2). A74358

Numbers of the form p⁸*q·r where p, q, and r are distinct primes. A179747

When squared gives number composed of digits {1,4,9}. A27675

a(n) = ((3+sqrt(5))*(1+sqrt(5))ⁿ + (3-sqrt(5))*(1-sqrt(5))ⁿ)/2. A163062

Number of 3-step king's tours on an n X n board summed over all starting positions. A186862

Numbers k such that (k / product of digits of k) is 1 or a prime. A1103