Properties of the Number 9218

Nine Thousand Two Hundred Eighteen

Basics

Value: 9217 → 9218 → 9219

Parity: even

Prime: No

Previous Prime: 9209

Next Prime: 9221

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 11 × 419

Divisors: 1, 2, 11, 22, 419, 838, 4609, 9218

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010000000010

Octal: 22002

Duodecimal: 5402

Hexadecimal: 2402

Square: 84971524

Square Root: 96.01041610158765

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 reduced words of length n in the Weyl group D₁₀. A162248

Numbers that are the sum of 11 positive 10th powers. A4811

Number of reduced words of length n in the Weyl group B₁₀. A161755

Coordination sequence for C₃ lattice: a(n) = 16·n² + 2 (n>0), a(0)=1. A10006

a(n) = 2nd elementary symmetric function of the first n+1 odd positive integers. A24196

Squarefree numbers n for which A019565(n) < n and A048675(n) is also squarefree. A285319

Trajectory of 7 under map x --> x + (x-with-digits-reversed). A33650

Trajectory of 89 under map x->x + (x-with-digits-reversed). A33670

Numbers that are the sum of eight fourth powers in six or more ways. A345581

Numbers that are the sum of eight fourth powers in seven or more ways. A345582