Properties of the Number -9218

Two Hundred Eighteen

Basics

Value: -9219 → -9218 → -9217

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

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

Inverse binomial transform of the "original" Bernoulli numbers [A164555(n)/A027642(n)] with 1 and 1/2 swapped. Numerators. A307974

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