Properties of the Number -66715

Sixty-Six Thousand Seven Hundred Fifteen

Basics

Value: -66716 → -66715 → -66714

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 11 × 1213

Divisors: 1, 5, 11, 55, 1213, 6065, 13343, 66715

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10000010010011011

Octal: -202233

Duodecimal: -32737

Hexadecimal: -1049b

Square: 4450891225

Square Root: 258.29246988636737

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 ∏_k>=1 (1 + x^k)^A001615(k), where A001615 is the Dedekind ψ function. A301594

Numerators of continued fraction convergents to sqrt(611). A42172

a(1) = 4; a(n) = smallest composite number of form k·a(n-1) + 1 with k > 1. A71258