Properties of the Number 79921

Seventy-Nine Thousand Nine Hundred Twenty-One

Basics

Value: 79920 → 79921 → 79922

Parity: odd

Prime: No

Previous Prime: 79907

Next Prime: 79939

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 229 × 349

Divisors: 1, 229, 349, 79921

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011100000110001

Octal: 234061

Duodecimal: 3A301

Hexadecimal: 13831

Square: 6387366241

Square Root: 282.70302439132126

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

Denominators of continued fraction convergents to sqrt(14). A41021

Numbers k such that [A070080(k), A070081(k), A070082(k)] is an integer Heronian triangle having triangular area. A70148

Composite numbers for which the root mean square of proper divisors is an integer. A247135

a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 1, a(1) = 2, a(2) = 1, a(3) = 3. A295678

a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 2, a(1) = 1, a(2) = 1, a(3) = 1. A295685

Numbers k>11 such that x^k + x¹¹ + x¹⁰ + x⁹ + x⁸ + x⁷ + x⁶ + x⁵ + x⁴ + x³ + x² + x + 1 is irreducible over GF(2). A57488

Solution to the Dancing School Problem with n girls and n+2 boys: f(n,2). A79921