Properties of the Number 51188

Fifty-One Thousand One Hundred Eighty-Eight

Basics

Value: 51187 → 51188 → 51189

Parity: even

Prime: No

Previous Prime: 51169

Next Prime: 51193

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 67 × 191

Divisors: 1, 2, 4, 67, 134, 191, 268, 382, 764, 12797

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100011111110100

Octal: 143764

Duodecimal: 25758

Hexadecimal: c7f4

Square: 2620211344

Square Root: 226.2476519215172

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

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum. A258894

Number of (n+2)X(2+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum. A258888

Number of (n+2) X (6+2) 0..1 arrays with no 3·3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum. A258892

Main diagonal of array in A358298. A358301

Sept-factorial numbers. A51188

Number of 4Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302955