Properties of the Number 68181

Sixty-Eight Thousand One Hundred Eighty-One

Basics

Value: 68180 → 68181 → 68182

Parity: odd

Prime: No

Previous Prime: 68171

Next Prime: 68207

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 22727

Divisors: 1, 3, 22727, 68181

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101001010101

Octal: 205125

Duodecimal: 33559

Hexadecimal: 10a55

Square: 4648648761

Square Root: 261.11491722994305

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

Numbers k such that sum of the divisors of k equals the sum of the reversals of the divisors of k. Numbers with all palindrome divisors are not in the sequence. A196677

Numbers k such that k and k² use only the digits 1, 4, 6, 7 and 8. A137052

a(n)=-1/b(2n) where 1/(e^y-e^y/3)= sum(i=-1,inf,b(i)*yⁱ). A68181