Properties of the Number 86931

Eighty-Six Thousand Nine Hundred Thirty-One

Basics

Value: 86930 → 86931 → 86932

Parity: odd

Prime: No

Previous Prime: 86929

Next Prime: 86939

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 13 × 743

Divisors: 1, 3, 9, 13, 39, 117, 743, 2229, 6687, 9659

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001110010011

Octal: 251623

Duodecimal: 42383

Hexadecimal: 15393

Square: 7556998761

Square Root: 294.8406349199513

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 integers in n-th generation of tree T(-1/2) defined in Comments. A274147

Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero. A299453

a(0) = 1, a(n) = spf(n)*a(n-spf(n)), where spf=A020639 (smallest prime factor). A86931