Properties of the Number -131071

One Hundred Thirty-One Thousand Seventy-One

Basics

Value: -131072 → -131071 → -131070

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 131071

Divisors: 1, 131071

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111111111111111

Octal: -377777

Duodecimal: -63A27

Hexadecimal: -1ffff

Square: 17179607041

Square Root: 362.03729089694616

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

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

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

a(1) = 0; for n > 1, a(n) = A000203(A156552(n)). A323243

Permutation of nonnegative integers: a(1) = 0, a(2) = 1, a(2n) = 2·a(n), a(2n+1) = 1 + 2·a(A064989(2n+1)). A243071

a(2n) = 2·2ⁿ - 1, a(2n+1) = 3·2ⁿ - 1. A52955

Jacobsthal-Lucas numbers. A14551