Properties of the Number -1189

One Hundred Eighty-Nine

Basics

Value: -1190 → -1189 → -1188

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 29 × 41

Divisors: 1, 29, 41, 1189

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10010100101

Octal: -2245

Duodecimal: -831

Hexadecimal: -4a5

Square: 1413721

Square Root: 34.48187929913333

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) = -a(n-1) - a(n-2) + a(n-3), a(0)=3, a(1)=-1, a(2)=-1. A73145

Row sums of a number triangle related to the Pell numbers. A110331

Expansion of ∑_k>=1 x^k/(1 + x^k)³. A320900

First differences of A000463. A188652

The Euclid tree with root 1 encoded by semiprimes, read across levels. A295512

Consider primitive pairs of integers (b, c) with b < 0 such that x⁵ + b·x + c = 0 is irreducible and solvable by radicals: sequence gives values of b. A371557

Expansion of (3 + 2·x + 3·x²)/(1 + x + 3·x² - x³). A73496

a(n)² is a triangular number: a(n) = 6·a(n-1) - a(n-2) with a(0)=0, a(1)=1. A1109

a(n) = n + (n+1)². A28387

a(n) = 3·a(n-1) + a(n-2), with a(0)=0, a(1)=1. A6190