Properties of the Number 8931

Eight Thousand Nine Hundred Thirty-One

Basics

Value: 8930 → 8931 → 8932

Parity: odd

Prime: No

Previous Prime: 8929

Next Prime: 8933

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 13 × 229

Divisors: 1, 3, 13, 39, 229, 687, 2977, 8931

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001011100011

Octal: 21343

Duodecimal: 5203

Hexadecimal: 22e3

Square: 79762761

Square Root: 94.50396817065408

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

14-gonal (or tetradecagonal) numbers: a(n) = n*(6·n-5). A51866

Number of integer partitions of n with integer reverse-alternating product. A347445

T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 3 neighboring 1s. A297519

Number of odd-length integer partitions of n with integer alternating product. A347444

Odd interprimes divisible by 13. A124619

Concatenation of n-th Fibonacci number and n-th prime. A138821

a(n)*a(n-13) = a(n-1)*a(n-12)+a(n-6)+a(n-7) with initial terms a(1)=...=a(13)=1. A133854

∑_{i for which n - i*(i-1)/2 >= 0} binomial (n - i*(i-1)/2, i). A63978

Values of r such that N(r)/r² > π, where N(r) is the number of integer lattice points (x,y) inside or on a circle of radius r. A93832

Number of compositions of n which avoid the pattern 112. A128742