Properties of the Number 52581

Fifty-Two Thousand Five Hundred Eighty-One

Basics

Value: 52580 → 52581 → 52582

Parity: odd

Prime: No

Previous Prime: 52579

Next Prime: 52583

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 1031

Divisors: 1, 3, 17, 51, 1031, 3093, 17527, 52581

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100110101100101

Octal: 146545

Duodecimal: 26519

Hexadecimal: cd65

Square: 2764761561

Square Root: 229.30547311392286

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

The number of edges on a concave circular triangle formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts. A340687

Number of n X 5 0..1 arrays with rows nondecreasing and antidiagonals unimodal. A224130

Number of 7 X n 0..1 arrays with rows nondecreasing and antidiagonals unimodal. A224138

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (0, -1, 0), (0, 0, -1), (1, 1, 1)}. A149578

T(n,k)=Number of nXk 0..1 arrays with rows nondecreasing and antidiagonals unimodal. A224133

E.g.f. (1-x)/(1-x-x⁴). A52581