Properties of the Number 66142

Sixty-Six Thousand One Hundred Forty-Two

Basics

Value: 66141 → 66142 → 66143

Parity: even

Prime: No

Previous Prime: 66137

Next Prime: 66161

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 33071

Divisors: 1, 2, 33071, 66142

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001001011110

Octal: 201136

Duodecimal: 3233A

Hexadecimal: 1025e

Square: 4374764164

Square Root: 257.18087020616446

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

G.f. A(x) satisfies: (1 - x·A(x)) / (1 - x²*A(x)²)² = 1 - x. A218225

a(n) = (n!)² + n! + 1. A66142