Properties of the Number 11387

Eleven Thousand Three Hundred Eighty-Seven

Basics

Value: 11386 → 11387 → 11388

Parity: odd

Prime: No

Previous Prime: 11383

Next Prime: 11393

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 59 × 193

Divisors: 1, 59, 193, 11387

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001111011

Octal: 26173

Duodecimal: 670B

Hexadecimal: 2c7b

Square: 129663769

Square Root: 106.70988707706518

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

G.f.: exp( ∑_n>=1 σ(2n)*xⁿ/n ). A182818

Expansion of ∑_k>=1 x^k / (1 - k·x^k)^k. A324158

a(n) = Fibonacci(n) + n². A160536

Consider all integer triples (i,j,k), j >= k > 0, with binomial(i+2,3) = j³ + k³, ordered by increasing i; sequence gives i values. A54205

a(n) = 2·a(n-1) - a(n-2) + a(n-3) - a(n-4), where a(0) = 2, a(1) = 4, a(2) = 5, a(3) = 6. A288429

Numbers n such that n = π(d₁!!*d₂!!*...*d_k!!) where d₁ d₂ ... d_k is the decimal expansion of n. A110071

Number of permutations of length n which avoid the patterns 312, 1324, 3421; or avoid the patterns 312, 1324, 2341, etc. A116722

a(n) = ∑_d∣n d^n/d * binomial(n/d-1,d-1). A376020

Number of strictly increasing arrangements of 6 nonzero numbers in -(n+4)..(n+4) with sum zero. A188125

Partial sums of A323183. A323187