Properties of the Number 72281

Seventy-Two Thousand Two Hundred Eighty-One

Basics

Value: 72280 → 72281 → 72282

Parity: odd

Prime: No

Previous Prime: 72277

Next Prime: 72287

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 11 × 6571

Divisors: 1, 11, 6571, 72281

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10001101001011001

Octal: 215131

Duodecimal: 359B5

Hexadecimal: 11a59

Square: 5224542961

Square Root: 268.8512599933279

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) = n³ - n² - n - 1. A83074

Indices of prime numbers in A014258. A101760

Number of trivially fully gated graphs on n nodes. A142860

Numbers n such that φ(n) + 1 and φ(n) - 1 are twin primes. A72281