Properties of the Number 16886

Sixteen Thousand Eight Hundred Eighty-Six

Basics

Value: 16885 → 16886 → 16887

Parity: even

Prime: No

Previous Prime: 16883

Next Prime: 16889

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 8443

Divisors: 1, 2, 8443, 16886

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100000111110110

Octal: 40766

Duodecimal: 9932

Hexadecimal: 41f6

Square: 285136996

Square Root: 129.94614268996213

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

Number of distributive lattices; also number of paths with n turns when light is reflected from 4 glass plates. A6357

4-wave sequence. A38197

Numbers n such that prime(n) + prime(n+1) is a cube. A71220

Expansion of ∏_k>=1 ((1 - 4·x^k)/(1 + 4·x^k))^1/4. A303387

McKay-Thompson series of class 36b for the Monster group. A112173

Total number of parts that are neither the smallest part nor the largest part in all partitions of n. A182977

Let i be in {1,2,3,4} and let r >= 0 be an integer. Let p = {p₁, p₂, p₃, p₄} = {-1,0,1,2}, n=3·r+p_i, and define a(-1)=1. Then a(n)=a(3·r+p_i) gives the quantity of H_9,1,0 tiles in a subdivided H_9,i,r tile after linear scaling by the factor Q^r, where Q=sqrt(x³-2·x) with x=2·cos(π/9). A187503

Let i be in {1,2,3,4} and let r >= 0 be an integer. Let p = {p₁, p₂, p₃, p₄} = {-1,0,1,2}, n=3·r+p_i, and define a(-1)=0. Then a(n)=a(3·r+p_i) gives the quantity of H_9,4,0 tiles in a subdivided H_9,i,r tile after linear scaling by the factor Q^r, where Q=sqrt(x³-2·x) with x=2·cos(π/9). A187506

Numbers k such that k⁴⁰⁹⁶ + (k+1)⁴⁰⁹⁶ is prime. A274236

McKay-Thompson series of class 18e for the Monster group. A58543