Properties of the Number 66471

Sixty-Six Thousand Four Hundred Seventy-One

Basics

Value: 66470 → 66471 → 66472

Parity: odd

Prime: No

Previous Prime: 66467

Next Prime: 66491

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 22157

Divisors: 1, 3, 22157, 66471

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001110100111

Octal: 201647

Duodecimal: 32573

Hexadecimal: 103a7

Square: 4418393841

Square Root: 257.8197044447922

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 binary vectors with restricted repetitions. A3440

Numbers of isomers of unbranched a-4-catapolyoctagons - see Brunvoll reference for precise definition. A121145

Sum of distinct orders of degree-n even permutations. A60180

Triangle read by rows: numbers of isomers of unbranched a-4-catapolyoctagons. A120649

Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,0 4,1 5,2 5,3 polyhexes in any orientation on a planar n X n X n triangular grid. A155336

Numbers k such that σ(φ(σ(k))) = σ(k). A66471