Properties of the Number 31115

Thirty-One Thousand One Hundred Fifteen

Basics

Value: 31114 → 31115 → 31116

Parity: odd

Prime: No

Previous Prime: 31091

Next Prime: 31121

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 5 × 7 ² × 127

Divisors: 1, 5, 7, 35, 49, 127, 245, 635, 889, 4445

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100110001011

Octal: 74613

Duodecimal: 1600B

Hexadecimal: 798b

Square: 968143225

Square Root: 176.39444435695813

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

Multiples of 7 in which there is no common digit in successive terms. A83495

Multiples of 5 in which there is no common digit in successive terms. A83493

Number of base-2 strong pseudoprimes (A001262) less than 2ⁿ. A108797

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 329", based on the 5-celled von Neumann neighborhood. A271275

Weight distribution of [127,43,31] primitive binary BCH code. A151815

A symmetrical triangular sequence:t(n,m)=(StirlingS1[n, m] + StirlingS1[n, n - m])*Binomial[n, m] - (StirlingS1[n, 0] + StirlingS1[n, n - 0])* Binomial[n, 0] + 1. A174834

Position of n-th 3 in A031111. A31115