Properties of the Number 64069

Sixty-Four Thousand Sixty-Nine

Basics

Value: 64068 → 64069 → 64070

Parity: odd

Prime: No

Previous Prime: 64067

Next Prime: 64081

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 79 × 811

Divisors: 1, 79, 811, 64069

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101001000101

Octal: 175105

Duodecimal: 310B1

Hexadecimal: fa45

Square: 4104836761

Square Root: 253.11854930052044

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

Numbers that cannot be expressed as sum of at most nine repdigits numbers. One may not add two integers with the same repeated digit. A339673

Number of unordered pairs (p,q) of distinct partitions of n such that the set of parts in q is equal to the set of parts in p. A369697

a(n) = T(n,n+2), array T as in A047130. A47137

a(n) = ∑_k=0..n (-1)^k*floor(φ^k), where φ is the golden ratio (A001622). A277752

Generalized Euler number c(8,n). A64069