Properties of the Number 66531

Sixty-Six Thousand Five Hundred Thirty-One

Basics

Value: 66530 → 66531 → 66532

Parity: odd

Prime: No

Previous Prime: 66529

Next Prime: 66533

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 67 × 331

Divisors: 1, 3, 67, 201, 331, 993, 22177, 66531

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001111100011

Octal: 201743

Duodecimal: 32603

Hexadecimal: 103e3

Square: 4426373961

Square Root: 257.93603858321154

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

Numbers m with the property that its k-th smallest divisor, for all 1 <= k <= τ(m), contains exactly k "1" digits in its binary representation. A255401

Numbers whose base-3 representation has exactly 11 runs. A43591

Numbers which can be expressed as the product of a number and its reversal in at least two different ways. A66531