Properties of the Number 72818

Seventy-Two Thousand Eight Hundred Eighteen

Basics

Value: 72817 → 72818 → 72819

Parity: even

Prime: No

Previous Prime: 72817

Next Prime: 72823

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 23 × 1583

Divisors: 1, 2, 23, 46, 1583, 3166, 36409, 72818

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10001110001110010

Octal: 216162

Duodecimal: 36182

Hexadecimal: 11c72

Square: 5302461124

Square Root: 269.8481054222912

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) = ∑_k=0..n k^p*q^k, where p=1, q=-2. A232600

a(n) = (2*(-1)ⁿ - 2ⁿ⁺¹ + 3·n*2ⁿ)/9. A140960

Possibly the only integers of the form sqrt(m²*(m²-1)*2/3) [only checked for the first 5 terms]. A72818