Properties of the Number 16188

Sixteen Thousand One Hundred Eighty-Eight

Basics

Value: 16187 → 16188 → 16189

Parity: even

Prime: No

Previous Prime: 16187

Next Prime: 16189

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 19 × 71

Divisors: 1, 2, 3, 4, 6, 12, 19, 38, 57, 71

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111100111100

Octal: 37474

Duodecimal: 9450

Hexadecimal: 3f3c

Square: 262051344

Square Root: 127.23207142855138

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(n) = 2ⁿ - n². A24012

Numbers n such that σ(n) = 8*φ(n). A104901

Number of base 10 n-digit numbers with adjacent digits differing by one or less. A126364

Nonnegative values·of solutions (x, y) to the Diophantine equation x²+(x+727)² = y². A130646

Numbers m with m-1, m+1 and prime(m)+2 all prime. A259539

Triangle read by rows: Take a hexagon with all diagonals drawn, as in A331931. Then T(n,k) = number of k-sided polygons in that figure for k = 3, 4, ..., n+4. A331932

Nonnegative numbers of the form x^y - y^x, for x,y > 1. A45575

Maximum value taken on by f(P) = ∑_i=1..n p(i)*p(n+1-i) as {p(1),p(2),...,p(n)} ranges over all permutations P of {1,2,3,...,n}. A87035

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 406", based on the 5-celled von Neumann neighborhood. A281892

Triangle of coefficients of polynomials v(n,x) jointly generated with A210751; see the Formula section. A210752