Properties of the Number 18083

Eighteen Thousand Eighty-Three

Basics

Value: 18082 → 18083 → 18084

Parity: odd

Prime: No

Previous Prime: 18077

Next Prime: 18089

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 13 ² × 107

Divisors: 1, 13, 107, 169, 1391, 18083

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011010100011

Octal: 43243

Duodecimal: A56B

Hexadecimal: 46a3

Square: 326994889

Square Root: 134.4730456262518

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(0) = 1; for n > 0, a(n) = 41·n² + 2. A206399

a(n) = floor(4ⁿ/(2+2·cos(2*π/7))ⁿ). A240671

Least number·such that xⁿ has n digits equal to k. Case k = 7. A285454

Expansion of 1 / ((1-x)²*(1-x²)*(1-x³)*...*(1-x⁸)). A288343

Expansion of (1/x) * Series_Reversion( x/(1-x+x³) ). A366051

Numerators of the exponential expansion of (3/(log(1+x)))*(1 - 1/(1+x)^1/3). A284857

Structured pentakis dodecahedral numbers (vertex structure 6). A100173

Number of nonempty subsets of {1, 2, ..., n} with <= 4 pairwise coprime elements. A187265

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2)*b(n-1), where a(0) = 1, a(1) = 4, b(0) = 2, b(1) = 3, and (a(n)) and (b(n)) are increasing complementary sequences. A296262

a(n) = a(n-1) + a(n - 1 minus the number of terms of a(k) == n (mod 3) so far). A60730