Properties of the Number 2179

Two Thousand One Hundred Seventy-Nine

Basics

Value: 2178 → 2179 → 2180

Parity: odd

Prime: Yes

Previous Prime: 2161

Next Prime: 2203

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2179

Divisors: 1, 2179

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100010000011

Octal: 4203

Duodecimal: 1317

Hexadecimal: 883

Square: 4748041

Square Root: 46.67976006793523

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

Wedderburn-Etherington numbers: unlabeled binary rooted trees (every node has outdegree 0 or 2) with n endpoints (and 2n-1 nodes in all). A1190

Triangle read by rows: Eulerian numbers of type B, T(n,k) (1 <= k <= n) given by T(n, 1) = T(n,n) = 1, otherwise T(n, k) = (2·n - 2·k + 1)*T(n-1, k-1) + (2·k - 1)*T(n-1, k). A60187

a(n) = 2·n² + 1. A58331

Primes with 7 as smallest primitive root. A1126

Primes of form n² + n + 17. A7635

Primes p such that a pure prime power occurs between p and the next prime. A53607

Numbers k such that (11^k - 3^k)/8 is prime. A128027

First member of a prime triple in a 2p-1 progression. A57326

Primes which are the sum of a prime and its subscript. A61068

Lonely (or isolated) primes: increasing distance to nearest prime. A23186