Properties of the Number 51320

Fifty-One Thousand Three Hundred Twenty

Basics

Value: 51319 → 51320 → 51321

Parity: even

Prime: No

Previous Prime: 51307

Next Prime: 51329

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 × 1283

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 1283, 2566

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100001111000

Octal: 144170

Duodecimal: 25848

Hexadecimal: c878

Square: 2633742400

Square Root: 226.5391798343059

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 permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={0,2,3}. A79955

a(n) = a(n-1) + a(n-5); a(0) = ... = a(4) = 1. A3520

Expansion of 1/(1 -x⁵ -x⁶ -x⁷ - ...). A17899

Number of integer partitions of n with at least two but not all parts having a common divisor greater than 1. A303139

Number of compositions of 5·n-4 into parts 1 and 5. A369839

Sum C(n-4k,k-1), k=0..floor(n/5). A99562

Number of active (ON, black) cells at stage 2ⁿ-1 of the two-dimensional cellular automaton defined by "Rule 217", based on the 5-celled von Neumann neighborhood. A270910

Euclid-Mullin sequence (A000945) with initial value a(1)=53 instead of a(1)=2. A51320