Properties of the Number -88

Eighty-Eight

Basics

Value: -89 → -88 → -87

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: Yes

Factorization: 2 ³ × 11

Divisors: 1, 2, 4, 8, 11, 22, 44, 88

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1011000

Octal: -130

Duodecimal: -74

Hexadecimal: -58

Square: 7744

Square Root: 9.38083151964686

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

Expansion of 1/(1 + x - x³ - x⁴ - x⁸ - x¹² - x¹³ - x¹⁷ - x²¹ - x²² - x²⁶ - x³⁰ - x³¹ + x³³ + x³⁴). A173908

Coefficients of Jacobi cusp form of index 1 and weight 12. A3785

a(n) = n - A162296(n), where A162296(n) is the sum of divisors of n that have a square factor. A325314

Dirichlet inverse of the deficiency of n, A033879. A323910

Expansion of ∏_k>=1 (1 - x^k)¹². A735

Coefficient triangle of certain polynomials. A56588

Nearest integer to n·tan(n). A274086

a(n) = ∑_k=1..n floor(n/k) * (-2)^k-1. A344817

Second differences of σ(n). A53223

Expansion of q^-1/2 * (η(q) * η(q²))⁴ in powers of q. A30211