Properties of the Number 64065

Sixty-Four Thousand Sixty-Five

Basics

Value: 64064 → 64065 → 64066

Parity: odd

Prime: No

Previous Prime: 64063

Next Prime: 64067

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 4271

Divisors: 1, 3, 5, 15, 4271, 12813, 21355, 64065

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101001000001

Octal: 175101

Duodecimal: 310A9

Hexadecimal: fa41

Square: 4104324225

Square Root: 253.11064774125958

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.: 1/G(0) where G(k) = 1 + (-q)^k+1 / (1 - (-q)^k+1/G(k+1) ). A227310

Number of self-converse loops (quasigroups with an identity element) of order n. A57996

9-step Fibonacci sequence starting with 0,0,0,0,0,1,0,0,0. A251748

Number of ways to partition n labeled elements into sets of different sizes of at least 3. A341283

a(n) is the least multiple of n such that a(n) = 1 mod k for all integers k with 1 < k < n and k relatively prime to n. A55006

n-th step is to add a(n) to each previous number a(k) (excluding itself, i.e., k < n) to produce n more terms of the sequence, starting with a(0)=0, a(1)=1. A64065