Properties of the Number -7056

Fifty-Six

Basics

Value: -7057 → -7056 → -7055

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ² × 7 ²

Divisors: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101110010000

Octal: -15620

Duodecimal: -4100

Hexadecimal: -1b90

Square: 49787136

Square Root: 84

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

a(n) = binomial(2·n, n)² / (1-2·n). A10370

a(n) = n! - n⁵. A196412

Expansion of e.g.f. log(1+x)/cos(tanh(x)). A9428

Expansion of φ(x)⁶ * φ(-x)² in powers of·where φ() is a Ramanujan θ function. A291124

Low-temperature partition function expansion for hexagonal lattice (Potts model, q=3). A57385

Coefficients of generalized factorial polynomials p(x, n) = (x/a - (n-1))*p(x, n-1) with p(x, 0) = 1, p(x, 1) = x/a and a = 1/2. Triangle read by rows, for n >= 0 and 0 <= k <= n. A137312

Expansion of log(1+x)*cosh(sin(x)). A9412

arctan(cos(x)*sin(x))=x-6/3!*x³+120/5!*x⁵-7056/7!*x⁷+758400/9!*x⁹... A12475

Coefficients of "optimum L" polynomials L_n(ω²) ordered by increasing powers. A245320

Triangle read by rows, based on products of Jacobsthal numbers (A001045). A378931