Properties of the Number 68841

Sixty-Eight Thousand Eight Hundred Forty-One

Basics

Value: 68840 → 68841 → 68842

Parity: odd

Prime: No

Previous Prime: 68821

Next Prime: 68863

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7649

Divisors: 1, 3, 9, 7649, 22947, 68841

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110011101001

Octal: 206351

Duodecimal: 33A09

Hexadecimal: 10ce9

Square: 4739083281

Square Root: 262.37568484903477

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 1/∏_k>=1 (1 - x^k)^{valuation(k,4} + 1). A373295

Numbers k such that x^k + x⁷ + 1 is irreducible over GF(2). A57477

Numbers k>7 such that x^k + x⁷ + x⁶ + x⁵ + x⁴ + x³ + x² + x + 1 is irreducible over GF(2). A57485

Numbers k such that the value π(k), the number of primes <= k, can be obtained deleting some of the repeating adjacent digits of k. A113898

Smallest prime larger than 3ⁿ whose digits begin with those of 3ⁿ. A68841