Properties of the Number 66696

Sixty-Six Thousand Six Hundred Ninety-Six

Basics

Value: 66695 → 66696 → 66697

Parity: even

Prime: No

Previous Prime: 66683

Next Prime: 66697

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 ³ × 3 × 7 × 397

Divisors: 1, 2, 3, 4, 6, 7, 8, 12, 14, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010010001000

Octal: 202210

Duodecimal: 32720

Hexadecimal: 10488

Square: 4448356416

Square Root: 258.25568725586663

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

Triangle T(n, k) giving coefficients in expansion of n! * ∑_i=0..n binomial(x - n, i) in powers of x. A54649

Numbers with digits 6 and 9 only. A284636

Expansion of g.f. A(x) satisfying A(x)³ = 1 + x*(A(x) + A(x)² + A(x)⁹). A363560

Numbers k whose decimal representation, read as a base-18 value and divided by k, yields an integer. A32567

6-almost primes with semiprime digits (digits 4, 6, 9 only). A111730

Number of compositions (ordered partitions) of n into at most 6 squarefree parts. A347783

Numbers k such that Euler φ(k) / Carmichael λ(k) = 14. A66696