Properties of the Number 68814

Sixty-Eight Thousand Eight Hundred Fourteen

Basics

Value: 68813 → 68814 → 68815

Parity: even

Prime: No

Previous Prime: 68813

Next Prime: 68819

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 3823

Divisors: 1, 2, 3, 6, 9, 18, 3823, 7646, 11469, 22938

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110011001110

Octal: 206316

Duodecimal: 339A6

Hexadecimal: 10cce

Square: 4735366596

Square Root: 262.3242268643901

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

Expansion of ∏_k>=1 ((1 + x^k³)/(1 - x^k³))^k³. A291721

Triangle read by rows: let t1(n,k)=Sum[(-1)^j Binomial[n + 1, j](k + 1 - j)ⁿ, {j, 0, k + 1}]; then T(n,m)=2·t1(n + 1, k) - (m! - n! + (-m + n)!). A155452

Primes with a 2 followed by (possibly zero) 1's. A68814