Properties of the Number -15893

Fifteen Thousand Eight Hundred Ninety-Three

Basics

Value: -15894 → -15893 → -15892

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 23 × 691

Divisors: 1, 23, 691, 15893

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111000010101

Octal: -37025

Duodecimal: -9245

Hexadecimal: -3e15

Square: 252587449

Square Root: 126.0674422680178

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

Number of nonisomorphic unordered pairs of involutions on an n-set. A362649

Number of parts in all proper twice partitions of n into distinct parts. A327795

a(n) is the constant term in expansion of ∏_k=1..n (x^k⁴ + 1 + 1/x^k⁴). A369358

Expansion of (1-x)^-1/(1-2·x²-2·x³). A77879

a(n) = position of the first occurrence of n in A245714. A245723

Binomial transform of [1, 2, 3, 4, 0, 0, 0, ...]. A139488

Least odd number d such that the Collatz (3x+1) iteration of d has the following property: if the length of the iteration is b and the maximum value occurs at c, the ratio c/b is 1/n. A224994

G.f.: ∑_k>=0 x^k⁴ / ∏_j=1..k⁴ (1 - x^j). A339235

Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 22. A51963

Number of squarefree words of length n in an 8-ary alphabet, with new values 0..7 introduced in increasing order. A215074