Properties of the Number -1142

One Hundred Forty-Two

Basics

Value: -1143 → -1142 → -1141

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 × 571

Divisors: 1, 2, 571, 1142

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -10001110110

Octal: -2166

Duodecimal: -7B2

Hexadecimal: -476

Square: 1304164

Square Root: 33.793490497431605

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) = 2ⁿ * ∑_k=0..n k^p*q^k, where p=2, q=-1/2. A232603

Expansion of χ(x) / φ(x²) in powers of·where φ(), χ() are Ramanujan θ functions. A85261

Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where column k is the expansion of e.g.f. -log(1 - f^k-1(x)), where f(x) = log(1+x). A351420

Partition function coefficients for square lattice spin 5/2 Ising model. A10109

Imbalance of the sum of largest parts of all partitions of n. A194809

Positive numbers for which the sum of digits equals the product of digits. A34710

Numbers n such that n³² + 1 is prime. A6315

Expansion of e.g.f. log(1-log(1-x)). A89064

Number of totally transitive rooted trees with n nodes. A318185

a(n) = ∑_d∣n binomial(n/d+d-2, d-1). A157019