Properties of the Number -9217

Two Hundred Seventeen

Basics

Value: -9218 → -9217 → -9216

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 13 × 709

Divisors: 1, 13, 709, 9217

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10010000000001

Octal: -22001

Duodecimal: -5401

Hexadecimal: -2401

Square: 84953089

Square Root: 96.00520819205592

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

a(n) = (n-1)*2ⁿ + 1. A337

Numbers that are the sum of 10 positive 10th powers. A4810

Semiprimes of the form k²+1. A144255

Expansion of ∏_{r = 1 or not a perfect power} 1/(1 - x^r). A305630

a(n) = 2·a(n-1) - 1 with a(0) = 10. A83705

Pierpont semiprimes: semiprimes of the form (2^K)*(3^L)+1. A113432

A 10th-order Fibonacci sequence. A127194

Number of integer partitions of n not containing 1 or any part whose prime indices all belong to the partition. A324755

Number of regions in a square when n internal squares are drawn between the 4n points that divide each side into n+1 equal parts. A357058

The·member of the positive proper fundamental solution (x = x2(n), y = y2(n)) of the second class for the Pell equation x² - D(n)*y² = +8 for odd D(n) = A263012(n). A264351