Properties of the Number -1179

One Hundred Seventy-Nine

Basics

Value: -1180 → -1179 → -1178

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 131

Divisors: 1, 3, 9, 131, 393, 1179

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10010011011

Octal: -2233

Duodecimal: -823

Hexadecimal: -49b

Square: 1390041

Square Root: 34.336569426778794

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

∏_k>=11/(1 - x^k)^a(k) = 1 + 2x. A38063

Expansion of (1 - x + 2·x²) / (1 - x³ + x⁴). A110062

Expansion of ∑_k>0 (1/(1+x^k)³ - 1). A363630

Expansion of q·f(-q¹, -q⁶)³ / f(-q², -q⁵)² * f(-q³, -q⁴) in powers of q where f() is Ramanujan's two-variable θ function. A305443

First differences of A142705. A142888

Expansion of g.f. ∏_n>=1 (1-xⁿ)*(1-x^5·n)/(1-x^3·n)². A54274

Inverse Euler transform of (-1)^{n - 1}. A320783

G.f. A(x) satisfies A(x³) = A(x)³/(1 + 3·A(x)). A386659

Let a₀ = 1 and for n > 0, let a_n be the smallest positive integer not already in the sequence such that (a₀ + a₁ x + a-2x² + ....)^1/3 has integer coefficients. (Hanna's A083349). Let f(n) = n th term in the present sequence. Then a₀ + a₁ x + a₂ x² + ... = (1-x)^f(1) (1-x²)^f(2) (1-x³)^f(3) .... A110879

Generalized 9-gonal (or enneagonal) numbers: m*(7·m - 5)/2 with m = 0, 1, -1, 2, -2, 3, -3, ... A118277