Properties of the Number 50688

Fifty Thousand Six Hundred Eighty-Eight

Basics

Value: 50687 → 50688 → 50689

Parity: even

Prime: No

Previous Prime: 50683

Next Prime: 50707

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ⁹ × 3 ² × 11

Divisors: 1, 2, 3, 4, 6, 8, 9, 11, 12, 16

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100011000000000

Octal: 143000

Duodecimal: 25400

Hexadecimal: c600

Square: 2569273344

Square Root: 225.1399564715246

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

12-almost primes (generalization of semiprimes). A69273

Number of subsets of {1..n} that cannot be linearly combined using nonnegative coefficients to obtain n. A365380

Triangle of coefficients of Chebyshev's U(n,2·x-1) polynomials (exponents of·in decreasing order). A53125

Scaled Chebyshev U-polynomials evaluated at i·sqrt(2). Generalized Fibonacci sequence. A57091

A transform of binomial(n,5). A82139

Analog of A095236 when the phones are arranged in a circle. A95239

Generalized Stirling2 array S_4,4(n,k). A90214

Irregular table read by rows: T(n,k) is the number of k-gons, k>=2, among all distinct circles that can be constructed from a point on the origin and n equally spaced points on each of the +x,-x,+y,-y coordinates axes using only a compass. A361623

a(n) = 8·a(n-1) - 8·a(n-2), a(0)=1, a(1)=4. A84130

G.f. A(x) satisfies A(x)² = 1 + 4·x*A(x)⁵. A245112