Properties of the Number 51586

Fifty-One Thousand Five Hundred Eighty-Six

Basics

Value: 51585 → 51586 → 51587

Parity: even

Prime: No

Previous Prime: 51581

Next Prime: 51593

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 25793

Divisors: 1, 2, 25793, 51586

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1100100110000010

Octal: 144602

Duodecimal: 25A2A

Hexadecimal: c982

Square: 2661115396

Square Root: 227.1255159597882

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 nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero. A305776

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 187", based on the 5-celled von Neumann neighborhood. A270675

Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero. A305773

Numbers having four 7's in base 9. A43484

Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero. A305770

There are exactly n integer-sided triangles of area a(n). A51586

Number of nX4 0..1 arrays with every element equal to 1, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero. A298830