Properties of the Number -1141

One Hundred Forty-One

Basics

Value: -1142 → -1141 → -1140

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 7 × 163

Divisors: 1, 7, 163, 1141

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001110101

Octal: -2165

Duodecimal: -7B1

Hexadecimal: -475

Square: 1301881

Square Root: 33.77869150810907

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+2·x²-2·x³). A77977

Expansion of 1/(1-x+2·x²+2·x³). A77956

Partial alternating sums of the sigma₂ function: a(n) = ∑_k=1..n (-1)^k+1 * sigma₂(k). A379921

Numerator of Bernoulli(n, 3/10). A158998

a(n) = (-1)^n-3*binomial(n,3) - 1. A216414

Hex (or centered hexagonal) numbers: 3·n*(n+1)+1 (crystal ball sequence for hexagonal lattice). A3215

Generalized 13-gonal numbers: m*(11·m-9)/2 with m = 0, 1, -1, 2, -2, 3, -3, ... A195313

"Three-quarter squares": a(n) = n² - A002620(n). A77043

Expansion of ∏_m>=1 (1+q^m)^m². A27998

a(n) = least k such that the remainder when 11^k is divided by k is n. A127819