Properties of the Number 66387

Sixty-Six Thousand Three Hundred Eighty-Seven

Basics

Value: 66386 → 66387 → 66388

Parity: odd

Prime: No

Previous Prime: 66383

Next Prime: 66403

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 22129

Divisors: 1, 3, 22129, 66387

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001101010011

Octal: 201523

Duodecimal: 32503

Hexadecimal: 10353

Square: 4407233769

Square Root: 257.6567484076441

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

[ n(n-1)(n-2)(n-3)/13 ]. A11923

Expansion of e.g.f. ∏_k>=1 1 / (1 - arcsinh(x^k)). A330535

Triangle T(n,m) (1<=m<=n) giving number of maps f:N -> N such that f^m(X)=X+n for all natural numbers X. A66387