Properties of the Number 64668

Sixty-Four Thousand Six Hundred Sixty-Eight

Basics

Value: 64667 → 64668 → 64669

Parity: even

Prime: No

Previous Prime: 64667

Next Prime: 64679

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 17 × 317

Divisors: 1, 2, 3, 4, 6, 12, 17, 34, 51, 68

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111110010011100

Octal: 176234

Duodecimal: 31510

Hexadecimal: fc9c

Square: 4181950224

Square Root: 254.29903656915414

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 k such that the value π(k), the number of primes <= k, can be obtained deleting some of the repeating adjacent digits of k. A113898

Regard A064413 as giving a permutation of the positive integers; sequence gives second infinite cycle, reading backwards beginning at its smallest term, 73. A64668