Properties of the Number 91118

Ninety-One Thousand One Hundred Eighteen

Basics

Value: 91117 → 91118 → 91119

Parity: even

Prime: No

Previous Prime: 91099

Next Prime: 91121

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 29 × 1571

Divisors: 1, 2, 29, 58, 1571, 3142, 45559, 91118

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001111101110

Octal: 261756

Duodecimal: 44892

Hexadecimal: 163ee

Square: 8302489924

Square Root: 301.85758231324917

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

One of the two successive approximations up to 7ⁿ for the 7-adic integer sqrt(-6). These are the numbers congruent to 6 mod 7 (except for the initial 0). A290802

Triangle, read by rows, where g.f. of row n equals the product of (1-x)ⁿ and the g.f. of the coordination sequence for root lattice B_n, for n >= 0. A109001

'Reverse and Add!' trajectory of 10553. A63060

Expansion of f(x³, x⁹) * f(x⁶, x⁶) / f(-x, -x²) in powers of·where f(,) is Ramanujan's general θ function. A257655

Coordination sequence for root lattice B₉. A22151

Integers n > 10553 such that the 'Reverse and Add!' trajectory of n joins the trajectory of 10553. A63061

a(n) = number of 'Reverse and Add!' operations that have to be applied to the n-th term of A063061 in order to obtain a term in the trajectory of 10553. A63062

Numbers n such that there is no regular hypermap on the nonorientable surface of characteristic -n. A91118