Properties of the Number 79925

Seventy-Nine Thousand Nine Hundred Twenty-Five

Basics

Value: 79924 → 79925 → 79926

Parity: odd

Prime: No

Previous Prime: 79907

Next Prime: 79939

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 5 ² × 23 × 139

Divisors: 1, 5, 23, 25, 115, 139, 575, 695, 3197, 3475

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011100000110101

Octal: 234065

Duodecimal: 3A305

Hexadecimal: 13835

Square: 6388005625

Square Root: 282.71009886454357

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 polyiamonds with n cells that tile the plane by 180-degree rotation (Conway criterion) but not by translation. A75219

Number of polyiamonds with n cells that tile the plane by 180-degree rotation (Conway criterion). A75220

Number of polyiamonds with n cells that tile the plane by translation or by 180-degree rotation (Conway criterion). A75221

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)^k, where B(x) is the e.g.f. of A384809. A384811

G.f. A(x) satisfies: [xⁿ] A(x)ⁿ = [xⁿ] A(x)^n-1 for n>1 with A(0)=A'(0)=1. A158882

Solution to the Dancing School Problem with n girls and n+6 boys: f(n,6). A79925