Properties of the Number 66172

Sixty-Six Thousand One Hundred Seventy-Two

Basics

Value: 66171 → 66172 → 66173

Parity: even

Prime: No

Previous Prime: 66169

Next Prime: 66173

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 71 × 233

Divisors: 1, 2, 4, 71, 142, 233, 284, 466, 932, 16543

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001001111100

Octal: 201174

Duodecimal: 32364

Hexadecimal: 1027c

Square: 4378733584

Square Root: 257.2391883053591

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

Expansion of (ψ(x³) / ψ(x))² in powers of·where ψ() is a Ramanujan θ function. A217786

Sum of spans of 2n-step polygons on square lattice. A6772

Number of 2-sided strip polykites with n cells. A151530

Numbers k such that φ(k+1) - φ(k) = -d(k). A66172