Properties of the Number 72331

Seventy-Two Thousand Three Hundred Thirty-One

Basics

Value: 72330 → 72331 → 72332

Parity: odd

Prime: No

Previous Prime: 72313

Next Prime: 72337

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 10333

Divisors: 1, 7, 10333, 72331

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101010001011

Octal: 215213

Duodecimal: 35A37

Hexadecimal: 11a8b

Square: 5231773561

Square Root: 268.94423213744517

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) = A008475(n!). A81402

Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 0 vertically. A207247

Number of (n+1)X(n+1) -11..11 symmetric matrices with every 2X2 subblock having sum zero and two or three distinct values. A211713

a(n) = 2^n-1 * ∑_k=0..n ((n+k)!/(n-k)!)/k!. A72331