Properties of the Number 50128

Fifty Thousand One Hundred Twenty-Eight

Basics

Value: 50127 → 50128 → 50129

Parity: even

Prime: No

Previous Prime: 50123

Next Prime: 50129

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ⁴ × 13 × 241

Divisors: 1, 2, 4, 8, 13, 16, 26, 52, 104, 208

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100001111010000

Octal: 141720

Duodecimal: 25014

Hexadecimal: c3d0

Square: 2512816384

Square Root: 223.89283150650448

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 A(n,k) of tilings of a k X n rectangle using polyominoes of shape I; square array A(n,k), n>=0, k>=0, read by antidiagonals. A254414

The number of tilings of a 4 X n rectangle using integer length rectangles with at least one side of length 1, i.e., tiles are 1 X 1, 1 X 2, ..., 1 X n, 2 X 1, 3 X 1, 4 X 1. A254125

The number of tilings of an n X n rectangle using integer length rectangles with at least one side of length 1, i.e., tiles are of size (1 X i) or (i X 1) with 1<=i<=n. A254127

Number of ways to pay n dollars using Canadian coins, that is: nickels (5 cents), dimes (10 cents), quarters (25 cents), loonies (100 cents or $1 coins) and toonies ($2 coins). A307849

Numbers k such that the decimal part of k^1/10 starts with a 'nine digits' anagram. A34285

a(n) = 49·2ⁿ - 3·n - 18. A387391

a(n) = floor(a(n-1)/2) if this is not among 0, a(1), ..., a(n-1); otherwise a(n) = 2·n. A50128

T(n,k) is the number of n-step king-knight's tours (piece capable of both kinds of moves) on a k X k board summed over all starting positions. A187850

Number of 5-step king-knight's tours (piece capable of both kinds of moves) on an n X n board summed over all starting positions. A187853

G.f. A(x) satisfies: A(x) = 1 + x·A(x)³ - x²/A(x)⁷. A295533