Properties of the Number 64561

Sixty-Four Thousand Five Hundred Sixty-One

Basics

Value: 64560 → 64561 → 64562

Parity: odd

Prime: No

Previous Prime: 64553

Next Prime: 64567

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 7 × 23 × 401

Divisors: 1, 7, 23, 161, 401, 2807, 9223, 64561

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

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Representations

Binary: 1111110000110001

Octal: 176061

Duodecimal: 31441

Hexadecimal: fc31

Square: 4168122721

Square Root: 254.0885672359148

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

G.f.: (21+98·x+91·x²+21·x³+x⁴)/(1-x)⁵. A160768

Heptagonal numbers which are products of three distinct primes. A356422

Multiplicity of highest weight (or singular) vectors associated with character chi₂₄ of Monster module. A34412

Numerator of the first column, n-th row of the table of the Akiyama-Tanigawa transform starting from a top row of Bernoulli numbers. A174182

Reciprocal of n terminates with an infinite repetition of digit 2. Multiples of 10 are omitted. A64561