Properties of the Number 72815

Seventy-Two Thousand Eight Hundred Fifteen

Basics

Value: 72814 → 72815 → 72816

Parity: odd

Prime: No

Previous Prime: 72797

Next Prime: 72817

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 14563

Divisors: 1, 5, 14563, 72815

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110001101111

Octal: 216157

Duodecimal: 3617B

Hexadecimal: 11c6f

Square: 5302024225

Square Root: 269.8425466823199

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) = 5·2ⁿ/9 + 1/4 + (-1)ⁿ*(n/6 + 7/36). A172416

a(n) = (-1 + 5·2^{2·n + 1} - 3·n)/9. A172447

Euler transform of the swinging factorial A056040. A190905

Sum of proper divisors of 6n + 1. A72815