Properties of the Number 66281

Sixty-Six Thousand Two Hundred Eighty-One

Basics

Value: 66280 → 66281 → 66282

Parity: odd

Prime: No

Previous Prime: 66271

Next Prime: 66293

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 79 × 839

Divisors: 1, 79, 839, 66281

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001011101001

Octal: 201351

Duodecimal: 32435

Hexadecimal: 102e9

Square: 4393170961

Square Root: 257.4509662052174

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

Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={-2,2}. A79992

Number of 0..n arrays x(0..10) of 11 elements with zero 6th differences. A200447

Number of 3-dimensional polyominoes (or polycubes) with n cells and rotational symmetry group of order exactly 4. A66281