Properties of the Number -31310

Thirty-One Thousand Three Hundred Ten

Basics

Value: -31311 → -31310 → -31309

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 31 × 101

Divisors: 1, 2, 5, 10, 31, 62, 101, 155, 202, 310

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111101001001110

Octal: -75116

Duodecimal: -16152

Hexadecimal: -7a4e

Square: 980316100

Square Root: 176.9463195435271

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

Number of obtuse triangles, distinct up to congruence, on an n X n grid (or geoboard). A190022

Numbers n such that 203·2ⁿ-1 is prime. A50853

a(1) = 1; for n > 1, a(n) is the least k > a(n-1) such that a(n) + a(n-1) is square and a(n) - a(n-1) is prime. A108972