Properties of the Number 82168

Eighty-Two Thousand One Hundred Sixty-Eight

Basics

Value: 82167 → 82168 → 82169

Parity: even

Prime: No

Previous Prime: 82163

Next Prime: 82171

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 10271

Divisors: 1, 2, 4, 8, 10271, 20542, 41084, 82168

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100000011111000

Octal: 240370

Duodecimal: 3B674

Hexadecimal: 140f8

Square: 6751580224

Square Root: 286.64961189577775

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 polygons with polygonal holes on the square lattice enumerated by half-perimeter. A88702

Number of (unlabeled) rooted trees with n leaf nodes and without unary nodes such that the maximum of the node outdegrees equals three. A292229

n times π(n) is made of nontrivial runs of identical digits, where π(n)=A000720(n). A116057

Poincaré series [or Poincare series] P(C_5,2(0); t). A124638

a(n) = A006690(n)/n³. A82168