Properties of the Number 18979

Eighteen Thousand Nine Hundred Seventy-Nine

Basics

Value: 18978 → 18979 → 18980

Parity: odd

Prime: Yes

Previous Prime: 18973

Next Prime: 19001

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 18979

Divisors: 1, 18979

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101000100011

Octal: 45043

Duodecimal: AB97

Hexadecimal: 4a23

Square: 360202441

Square Root: 137.76429145464365

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 compositions of n whose run-lengths are all equal. A329738

Number of connected regular graphs with n nodes. A5177

Primes of the form 2n²+18n+7, n>=0. A154592

Primes p such that q-p = 22, where q is the next prime after p. A61779

Greatest prime factor of A104357(n) = A104350(n) - 1. A104359

Numbers that are the sum of five fourth powers in three or more ways. A344243

Numbers that are the sum of five fourth powers in exactly three ways. A344244

Numbers m with C(2·m, m) + prime(m) prime, where C(2·m, m) = (2·m)!/(m!)². A236242

Primes p such that the largest prime divisor of p⁴+1 is less than p. A102326

Primes with digit sum = 34. A106769