Properties of the Number 51165

Fifty-One Thousand One Hundred Sixty-Five

Basics

Value: 51164 → 51165 → 51166

Parity: odd

Prime: No

Previous Prime: 51157

Next Prime: 51169

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 379

Divisors: 1, 3, 5, 9, 15, 27, 45, 135, 379, 1137

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100011111011101

Octal: 143735

Duodecimal: 25739

Hexadecimal: c7dd

Square: 2617857225

Square Root: 226.19681695373168

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

Central half-moments of a Fibonacci-geometric probability distribution. A302925

a(n) = ∑_{k=0..floor(n/8)} binomial(n-4·k,4·k). A348289

Numbers k with nonzero digits such that k +/- the product of digits of k are both palindromes. A244547

k such that 0 = ∑_j=1..k A373223(k, j). The indices of the rows in Gauss's triangle with vanishing row sums. A373181

Sequence is defined by property that binomial transform of (a0,a1,a2,a3,...) = (a0,a0,a1,a1,a2,a2,a3,a3,...). A51165

Number of (n+2)X3 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically, exactly one way. A204410