Properties of the Number 66796

Sixty-Six Thousand Seven Hundred Ninety-Six

Basics

Value: 66795 → 66796 → 66797

Parity: even

Prime: No

Previous Prime: 66791

Next Prime: 66797

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 16699

Divisors: 1, 2, 4, 16699, 33398, 66796

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010011101100

Octal: 202354

Duodecimal: 327A4

Hexadecimal: 104ec

Square: 4461705616

Square Root: 258.4492213182311

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. satisfies A(x) = exp( ∑_k>=1 (2 * (-1)^k + A(x^k)) * x^k/k ). A363565

Number of ordered 5-tuples of integers from [ 1,n ] with no common factors among triples. A15656

a(n) = ∑_i=1..n binomial(2·i,i). A66796