Properties of the Number 18204

Eighteen Thousand Two Hundred Four

Basics

Value: 18203 → 18204 → 18205

Parity: even

Prime: No

Previous Prime: 18199

Next Prime: 18211

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 37 × 41

Divisors: 1, 2, 3, 4, 6, 12, 37, 41, 74, 82

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011100011100

Octal: 43434

Duodecimal: A650

Hexadecimal: 471c

Square: 331385616

Square Root: 134.92219980418344

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

(L)-sieve transform of {1,4,7,10,...,3n-2,...} (A016777). A152009

a(n) = n! * ∑_k=1..n binomial(n,k)/k. A103213

Sums of the antidiagonals of Sundaram's sieve (A159919). A159920

Number of partitions p of n such that the number of numbers having multiplicity 1 in p is a part or the number of numbers having multiplicity > 1 is a part. A239737

Perimeters of more than one primitive Pythagorean triangle. A24408

Expansion of e.g.f. 1 / (7 - 6·exp(x))^2/3. A365556

Number of partitions of 1/n into 4 reciprocals of positive integers. A20327

The first of 50 consecutive positive integers the sum of the squares of which is a square. A269451

Number of permutations p of [n] such that |p(i) - p(i-1)| is in {2,5} for all i from 2 to n. A307269

Numbers n such that n | sigma₁₂(n). A55716