Properties of the Number 18117

Eighteen Thousand One Hundred Seventeen

Basics

Value: 18116 → 18117 → 18118

Parity: odd

Prime: No

Previous Prime: 18097

Next Prime: 18119

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 11 × 61

Divisors: 1, 3, 9, 11, 27, 33, 61, 99, 183, 297

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100011011000101

Octal: 43305

Duodecimal: A599

Hexadecimal: 46c5

Square: 328225689

Square Root: 134.59940564504734

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

T(n,k)=Number of nXk 0..2 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors. A232281

Numbers that are the sum of eight fourth powers in eight or more ways. A345583

Numbers that are the sum of eight fourth powers in exactly eight ways. A345840

a(n) = ∑_j=1..n ∑_k=1..n gcd(j·k,n). A372881

Number of nX3 0..2 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors. A232276

Number of 4Xn 0..2 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors. A232284

Numbers k such that A383844(k) and A383844(k+1) are nonzero. A384310

Powers of fifth root of 2 rounded down. A18117