Properties of the Number 18298

Eighteen Thousand Two Hundred Ninety-Eight

Basics

Value: 18297 → 18298 → 18299

Parity: even

Prime: No

Previous Prime: 18289

Next Prime: 18301

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 7 × 1307

Divisors: 1, 2, 7, 14, 1307, 2614, 9149, 18298

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011101111010

Octal: 43572

Duodecimal: A70A

Hexadecimal: 477a

Square: 334816804

Square Root: 135.2701001699932

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 atoms in a decahedron with n shells. A4068

T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements. A284075

Stirling-like number triangle defined by sequence A000217. A80248

Successive powers of the matrix A=[1,2;3,4] written by rows in groups of 4. A100638

Number of rooted trees with total weight n, where the weight of a node at height k is k (with the root considered to be at level 1). A117357

Number of ways to place 3 points on an n X n point grid so that no point is equally distant from two other points on the same row or the same column. A296997

Expansion of 1/((1-x)(1-3x)(1-6x)). A16211

Surround numbers of an n X 1 rectangle. A60633

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

Irregular triangle read by rows: T(n,k) is the number of necklaces of n 1's, n -1's, and k 0's such that no two adjacent elements are equal. A283615