Properties of the Number -8191

One Hundred Ninety-One

Basics

Value: -8192 → -8191 → -8190

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 8191

Divisors: 1, 8191

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111111111111

Octal: -17777

Duodecimal: -48A7

Hexadecimal: -1fff

Square: 67092481

Square Root: 90.50414355155237

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

Numerators of an asymptotic series for the γ function (odd power series). A277002

Even-indexed terms of the binomial transform equal 1 and the odd-indexed terms of the second binomial transform equal 1. A90145

Coefficients of (q*(j(q)-720))^-1/24 where j(q) is the elliptic modular invariant. A305758

a(n) = A128018(n) + 1. A157240

Irregular triangle read by rows: coefficients of polynomials V_n(x), highest degree terms first. A257597

Expansion of e.g.f. (1 + sin(x))/exp(x). A321632

a(n) = 2ⁿ - 1. (Sometimes called Mersenne numbers, although that name is usually reserved for A001348.) A225

Mersenne primes (primes of the form 2ⁿ - 1). A668

Numbers of the form 2^n-1*(2^n·m-1)/(2ⁿ-1), n >= 1, m >= 1. A272919

Mersenne numbers: 2^p - 1, where p is prime. A1348