Properties of the Number 66857

Sixty-Six Thousand Eight Hundred Fifty-Seven

Basics

Value: 66856 → 66857 → 66858

Parity: odd

Prime: No

Previous Prime: 66853

Next Prime: 66863

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 7 × 9551

Divisors: 1, 7, 9551, 66857

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010100101001

Octal: 202451

Duodecimal: 32835

Hexadecimal: 10529

Square: 4469858449

Square Root: 258.56720596394274

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

a(n) = 2ⁿ + 6ⁿ + 9ⁿ. A74543

Smallest number k such that n! - k is a square. A66857