Properties of the Number 66872

Sixty-Six Thousand Eight Hundred Seventy-Two

Basics

Value: 66871 → 66872 → 66873

Parity: even

Prime: No

Previous Prime: 66863

Next Prime: 66877

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 13 × 643

Divisors: 1, 2, 4, 8, 13, 26, 52, 104, 643, 1286

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010100111000

Octal: 202470

Duodecimal: 32848

Hexadecimal: 10538

Square: 4471864384

Square Root: 258.59621033572785

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

Partial sums of the third power of the arithmetic derivative function A003415. A231946

Numbers k such that 25·2^k+1 is prime. A32362

a(n) = prime(n)² + 1. A66872

Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero. A316235