Properties of the Number 72819

Seventy-Two Thousand Eight Hundred Nineteen

Basics

Value: 72818 → 72819 → 72820

Parity: odd

Prime: No

Previous Prime: 72817

Next Prime: 72823

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 29 × 31

Divisors: 1, 3, 9, 27, 29, 31, 81, 87, 93, 261

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110001110011

Octal: 216163

Duodecimal: 36183

Hexadecimal: 11c73

Square: 5302606761

Square Root: 269.8499583101691

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

Number of 9-line partitions of n (i.e., planar partitions of n with at most 9 lines). A225199

Numbers that are the sum of four third powers in ten or more ways. A345155

Numbers that are the sum of four third powers in exactly ten ways. A345156

Decimal expansion of π/(2·sqrt(3)). A93766

Variance of time for a random walk starting at 0 to reach one of the boundaries at +n or -n for the first time. A72819