Properties of the Number 66904

Sixty-Six Thousand Nine Hundred Four

Basics

Value: 66903 → 66904 → 66905

Parity: even

Prime: No

Previous Prime: 66889

Next Prime: 66919

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 8363

Divisors: 1, 2, 4, 8, 8363, 16726, 33452, 66904

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010101011000

Octal: 202530

Duodecimal: 32874

Hexadecimal: 10558

Square: 4476145216

Square Root: 258.6580754587028

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

Number T(n,k) of compositions of n into distinct parts where each part i is marked with a word of length i over a k-ary alphabet whose letters appear in alphabetical order and all k letters occur at least once in the composition; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A261836

Number of ways to select a nonempty subset s from an n-set and then partition s into blocks of equal size. A262280

Number of compositions of n into distinct parts where each part i is marked with a word of length i over an octonary alphabet whose letters appear in alphabetical order and all letters occur at least once in the composition. A261859

Triangular numbers in A006577. A66904