Properties of the Number 72513

Seventy-Two Thousand Five Hundred Thirteen

Basics

Value: 72512 → 72513 → 72514

Parity: odd

Prime: No

Previous Prime: 72503

Next Prime: 72533

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 × 1151

Divisors: 1, 3, 7, 9, 21, 63, 1151, 3453, 8057, 10359

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101101000001

Octal: 215501

Duodecimal: 35B69

Hexadecimal: 11b41

Square: 5258135169

Square Root: 269.28237966862963

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

E.g.f.: A(x) = ∑_n>=0 exp((3ⁿ-1)/2·x)*xⁿ/n!. A135753

Expansion of 1/((1-x)(1-4x)(1-7x)(1-12x)). A21894

Numbers n such that 291·2ⁿ-1 is prime. A50904

Product of all n - d, where d < n and d is a divisor of n. A72513