Properties of the Number -1143

One Hundred Forty-Three

Basics

Value: -1144 → -1143 → -1142

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 127

Divisors: 1, 3, 9, 127, 381, 1143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -10001110111

Octal: -2167

Duodecimal: -7B3

Hexadecimal: -477

Square: 1306449

Square Root: 33.80828300875393

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 f(-x³)³ / (f(-x²) * f(-x⁴)²) in powers of·where f() is a Ramanujan θ function. A262150

a(n+4) = a(n+1) - a(n), a(0) = 1, a(1) = -4, a(2) = 0, a(3) = 1. A110064

McKay-Thompson series of class 24G for the Monster group. A112161

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 209", based on the 5-celled von Neumann neighborhood. A270894

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 493", based on the 5-celled von Neumann neighborhood. A272546

a(1)=0; thereafter a(n) = (n-1)*σ(n)-n*σ(n-1) where σ is the sum-of-divisors function A000203. A335153

a(n) = [qⁿ] (1 - q)ⁿ / ∏_j=1..n (1 - q^j). A281425

Gullwing sequence (see Comments lines for precise definition). A187220

Number of partitions of n with parts >= 9. A185329

Triangle read by rows: number of set partitions of n elements with k connectors, 0<=k<n. A185982