Properties of the Number 1056

One Thousand Fifty-Six

Basics

Value: 1055 → 1056 → 1057

Parity: even

Prime: No

Previous Prime: 1051

Next Prime: 1061

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ⁵ × 3 × 11

Divisors: 1, 2, 3, 4, 6, 8, 11, 12, 16, 22

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000100000

Octal: 2040

Duodecimal: 740

Hexadecimal: 420

Square: 1115136

Square Root: 32.49615361854384

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

Oblong (or promic, pronic, or heteromecic) numbers: a(n) = n*(n+1). A2378

Coefficients in expansion of Eisenstein series E₂ (also called E₁ or G₂). A6352

Number of (n-1)-bead black-white reversible strings; also binary grids; also row sums of Losanitsch's triangle A034851; also number of caterpillar graphs on n+2 vertices. A5418

Sums of two distinct powers of 2. A18900

a(n) = 2·n*(2·n+1). A2943

a(-1) = 1; for n >= 0, a(n) = 2ⁿ + 4ⁿ = 2ⁿ*(1 + 2ⁿ). A63376

Numbers that are the sum of 2 positive 5th powers. A3347

Quintuple factorial numbers: ∏_k=0..n-1 (5·k+1). A8548

Numbers that are divisible by exactly 7 primes counting multiplicity. A46308

Sum of all parts of the last section of the set of partitions of n. A138879