Properties of the Number 66708

Sixty-Six Thousand Seven Hundred Eight

Basics

Value: 66707 → 66708 → 66709

Parity: even

Prime: No

Previous Prime: 66701

Next Prime: 66713

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 17 × 109

Divisors: 1, 2, 3, 4, 6, 9, 12, 17, 18, 34

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010010010100

Octal: 202224

Duodecimal: 32730

Hexadecimal: 10494

Square: 4449957264

Square Root: 258.2789190003706

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

a(n) = n³ + (n+1)³ + (n+2)³ + (n+3)³. A27603

a(n) = 3^n²+n * C(2·n-1 + 1/3ⁿ, n) / (n·3ⁿ + 1). A159319

Number of (n+3) X 7 0..2 matrices with each 4 X 4 subblock idempotent. A224724

a(n) = T(n, 4) with T(n, k) = ∑_d∣k φ(d)*binomial(n - 1 + k/d, k/d). A327032

Irregular table read by rows: The number of k-faced polyhedra, where k >= 4, created when an n-bipyramid, formed from two n-gonal pyraminds joined at the base, is internally cut by all the planes defined by any three of its vertices. A338825

Least m such that n = m mod τ(m) if such m exists, otherwise 0. A66708

Hilltop maps: number of nX6 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..3 nX6 array. A218808

Factorials representable as b² + triangular(c). A230363