Properties of the Number 18502

Eighteen Thousand Five Hundred Two

Basics

Value: 18501 → 18502 → 18503

Parity: even

Prime: No

Previous Prime: 18493

Next Prime: 18503

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 11 × 29 ²

Divisors: 1, 2, 11, 22, 29, 58, 319, 638, 841, 1682

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100100001000110

Octal: 44106

Duodecimal: A85A

Hexadecimal: 4846

Square: 342324004

Square Root: 136.02205703487945

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

Coordination sequence for (2,5,infinity) tiling of hyperbolic plane. A265068

a(n+1) = a(n)-th composite number, with a(0) = 1. A6508

Number of connected squarefree graphs on n nodes. A77269

a(n) = 22·n². A195323

T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without 2-loops or left turns. A221890

T(n,k)=Number of nXk 0..2 arrays with rows and columns unimodal and antidiagonals nondecreasing. A224057

Triangle T(n,k) read by rows: number of squarefree graphs on n nodes with k components. A300756

Number of reverse alternating fixed-point-free permutations on n letters. A129815

Triangle read by rows: T(n,k) is the number of reverse alternating (i.e., up-down) permutations of {1,2,...,n} having k fixed points (n >= 0, 0 <= k <= 1 + floor(n/2)). A162980

G.f.: x*(1-x²)*(x⁴+x³-x²+x+1) / (x⁸-4·x⁶-x⁴-4·x²+1). A5822