Properties of the Number 11056

Eleven Thousand Fifty-Six

Basics

Value: 11055 → 11056 → 11057

Parity: even

Prime: No

Previous Prime: 11047

Next Prime: 11057

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ⁴ × 691

Divisors: 1, 2, 4, 8, 16, 691, 1382, 2764, 5528, 11056

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101100110000

Octal: 25460

Duodecimal: 6494

Hexadecimal: 2b30

Square: 122235136

Square Root: 105.14751542475932

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

Reduced tangent numbers: 2ⁿ*(2²ⁿ - 1)*|B_2n|/n, where B_n = Bernoulli numbers. A2105

G.f.: q * ∏_m>=1 (1-q^m)⁸*(1-q^2m)⁸. A2288

Another version of triangular array in A083061: triangle T(n,k), 0<=k<=n, read by rows; given by [0, 1, 3, 6, 10, 15, 21, 28, ...] δ [1, 2, 3, 4, 5, 6, 7, 8, ...] where δ is the operator defined in A084938. A94665

Triangle of coefficients of a companion polynomial to the Gandhi polynomial. A83061

Number of binary [ n,3 ] codes without 0 columns. A34344

Poupard's triangle: triangle of numbers arising in enumeration of binary trees. A8301

Left half of Poupard's triangle, A008301. A210108

Array A(n, k) read by ascending antidiagonals. Polygonal number weighted generalized Catalan sequences. A365673

Triangle read by rows: coefficients d(n,k) of André polynomials D(x,n) = ∑_k>0 d(n,k)*x^k. A94503

E.g.f.: (1+sqrt(2)*sin(x/sqrt(2))*cosh(x/sqrt(2))+sin(x/sqrt(2))*sinh(x/sqrt(2)))/(cos(x/sqrt(2))*cosh(x/sqrt(2))). A178964