Properties of the Number 11386

Eleven Thousand Three Hundred Eighty-Six

Basics

Value: 11385 → 11386 → 11387

Parity: even

Prime: No

Previous Prime: 11383

Next Prime: 11393

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5693

Divisors: 1, 2, 5693, 11386

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001111010

Octal: 26172

Duodecimal: 670A

Hexadecimal: 2c7a

Square: 129640996

Square Root: 106.70520137275409

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(1)=a(2)=a(3)=1, a(4)=3; thereafter a(n) = a(n-1) + a(n-3). A179070

a(n) = (11·n² - 11·n + 2)/2. A69125

Number of maximal intersecting antichains of sets covering n vertices with no singletons. A326361

T(n,k)=Number of length n+k 0..2 arrays with at most two downsteps in every k consecutive neighbor pairs. A255622

Expansion of ∏_k>=1 ((1 - k·x^k) / (1 - x^k)). A267005

a(n) = [xⁿ] ∏_k>=1 ((1 + x^2·k-1)/(1 + x^2·k))ⁿ. A296043

a(n) = Sum of all numbers of divisors of all numbers < (n+1)². A168011

2nd row of the 3-Zeckendorf array (A136189), including prepended terms. A372760

Sum of terms in n-th row of A077164. A77167

Floor-Sqrt transform of Catalan numbers (A000108). A186546