Properties of the Number 18082

Eighteen Thousand Eighty-Two

Basics

Value: 18081 → 18082 → 18083

Parity: even

Prime: No

Previous Prime: 18077

Next Prime: 18089

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 9041

Divisors: 1, 2, 9041, 18082

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011010100010

Octal: 43242

Duodecimal: A56A

Hexadecimal: 46a2

Square: 326958724

Square Root: 134.46932735757994

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) = a(n-1) + a(n-2) + a(n-3); a(0) = -1, a(1) = 2, a(2) = 2. A100683

a(n) = -a(n-1) - a(n-2) + a(n-3), a(0)=0, a(1)=0, a(2)=1. A57597

Starting from generation 8 add previous and next term yielding generation 9. A48455

Centered 21-gonal numbers. A69178

Number of twos minus number of ones in the first 2ⁿ entries of the Kolakoski sequence, A000002. A289323

G.f.: ∏_{k>=1, j>=1} (1 + x^k·j)². A320235

McKay-Thompson series of class 18d for the Monster group. A58539

Numbers n such that h(n) = 2 h(n-1) where h(n) is the length of the sequence {n, f(n), f(f(n)), ...., 1} in the Collatz (or 3x + 1) problem. (The earliest "1" is meant.) A78419

Triangle, read by rows, where the n-th diagonal equals the n-th row transformed by triangle A008459 (squared binomial coefficients). A97084

Number of partitions of n, where the difference between the number of odd parts and the number of even parts is 8. A240017