Properties of the Number 51644

Fifty-One Thousand Six Hundred Forty-Four

Basics

Value: 51643 → 51644 → 51645

Parity: even

Prime: No

Previous Prime: 51637

Next Prime: 51647

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 12911

Divisors: 1, 2, 4, 12911, 25822, 51644

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100110111100

Octal: 144674

Duodecimal: 25A78

Hexadecimal: c9bc

Square: 2667102736

Square Root: 227.25316279427224

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 ways to split a strict integer partition of n into consecutive subsequences with weakly decreasing sums. A319794

Number of integer partitions of n whose parts plus 1 are relatively prime. A318980

Triangle T(n,k) is the number of restricted growth strings (RGS) of set partitions of {1..n} that have an increase at index k (1<=k<n). A56861

Expansion of ∑_k>0 (1/(1-x^k)⁵ - 1). A363695

Primes of the form 6·p + 1 where p is also prime. A51644