Properties of the Number 18396

Eighteen Thousand Three Hundred Ninety-Six

Basics

Value: 18395 → 18396 → 18397

Parity: even

Prime: No

Previous Prime: 18379

Next Prime: 18397

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 7 × 73

Divisors: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100011111011100

Octal: 43734

Duodecimal: A790

Hexadecimal: 47dc

Square: 338412816

Square Root: 135.6318546654878

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 ways of writing n as a sum of 6 squares. A141

Number of ways of writing n² as a sum of n squares. A232173

Numbers k such that τ(k) = τ(k+1) mod 691, where τ is Ramanujan's τ function A000594. A121733

E.g.f. satisfies A(x) = exp( x/((1-x) * A(x)³) ). A361069

The number of regions inside a heptagon formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts. A329713

Number of partitions p of n such that the number of parts having multiplicity 1 is a part and max(p) - min(p) is not a part. A241449

Numbers k such that k+1 is a prime, k+2 is twice a prime, and k+3 is three times a prime. A278583

θ series of D₆ lattice. A8428

a(n) = 7·n*(2·n + 1). A195026

Number of 2 X 2 matrices having all elements in {-n,...n} and determinant 2. A209984