Properties of the Number 64625

Sixty-Four Thousand Six Hundred Twenty-Five

Basics

Value: 64624 → 64625 → 64626

Parity: odd

Prime: No

Previous Prime: 64621

Next Prime: 64627

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 ³ × 11 × 47

Divisors: 1, 5, 11, 25, 47, 55, 125, 235, 275, 517

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111110001110001

Octal: 176161

Duodecimal: 31495

Hexadecimal: fc71

Square: 4176390625

Square Root: 254.21447637772323

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

Place n equally spaced points on each side of a square, and join each of these points by a chord to the 3·n new points on the other three sides: sequence gives number of interior vertices in the resulting planar graph. A367277

Structured octagonal anti-diamond numbers (vertex structure 7). A100187

Number of (n+1) X (2+1) 0..1 arrays with each row divisible by 3 and each column divisible by 5, read as a binary number with top and left being the most significant bits. A262466

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 541", based on the 5-celled von Neumann neighborhood. A272807

Generalization of the Genocchi numbers. Generated by the Gandhi polynomials A(n+1,r) = r⁴*A(n,r+1) - (r-1)⁴*A(n,r); A(1,r) = r⁴ - (r-1)⁴. A64625

Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of these n·k points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of internal vertices in the resulting planar graph. A367303