Properties of the Number 1142

One Thousand One Hundred Forty-Two

Basics

Value: 1141 → 1142 → 1143

Parity: even

Prime: No

Previous Prime: 1129

Next Prime: 1151

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

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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

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

Position of n-th prime in A064413. A64955

Number of integer partitions of n for which every restriction to a subinterval has a different sum. A325768

Number of toothpicks after n-th stage in the I-toothpick structure of A139250. A160164

Number of compositions (ordered partitions) of n into distinct prime parts. A219107

Triangle T(n,k) (1 <= k <= n) read by rows: T(n,k) is the number of permutations of [1..n] with k components. A59438