Properties of the Number 66275

Sixty-Six Thousand Two Hundred Seventy-Five

Basics

Value: 66274 → 66275 → 66276

Parity: odd

Prime: No

Previous Prime: 66271

Next Prime: 66293

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 ² × 11 × 241

Divisors: 1, 5, 11, 25, 55, 241, 275, 1205, 2651, 6025

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001011100011

Octal: 201343

Duodecimal: 3242B

Hexadecimal: 102e3

Square: 4392375625

Square Root: 257.43931323712

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 of permutations of {1,2,...,n} having excedance set {1,2,...,k} for some k=0...n-1 (for k=0 we have the empty set). The excedance set of a permutation p in S_n is the set of indices i such that p(i)>i. A136127

Irregular triangle read by rows: T(n,k) is the number of permutations in C_n (= the 1-cycles in S_n) having k stretching pairs. A216121

Growth series for affine Coxeter group (or affine Weyl group) D₁₁. A266766

Growth series for affine Coxeter group B₁₁. A267174

Number of endofunctions of [n] such that some element is fixed, but 1 is not fixed. A66275