Properties of the Number 18084

Eighteen Thousand Eighty-Four

Basics

Value: 18083 → 18084 → 18085

Parity: even

Prime: No

Previous Prime: 18077

Next Prime: 18089

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 11 × 137

Divisors: 1, 2, 3, 4, 6, 11, 12, 22, 33, 44

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100011010100100

Octal: 43244

Duodecimal: A570

Hexadecimal: 46a4

Square: 327031056

Square Root: 134.47676379211393

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

Parker's partition triangle T(n,k) read by rows (n >= 1 and 0 <= k <= n-1). A47812

Numbers n such that σ(n) is a Fibonacci number. A272412

Number of partitions of floor(n²/2) with at most n parts and maximal height n. A29895

Central elements in Parker's partition triangle. A51643

Maximal coefficient among the polynomials in row n of the triangle of q-binomial coefficients. A277218

Transpose T(n,k) of Parker's partition triangle A047812 (n >= 1 and 0 <= k <= n-1). A136621

Number of subsets of {1, 2, ..., n} containing n and having <=5 pairwise coprime elements. A186989

Denominators of continued fraction convergents to sqrt(349). A41661

Number of directed aggregates of height <= 2 with n cells. A82397

Diagonal sums of number triangle A109974. A109976