Properties of the Number 50020

Fifty Thousand Twenty

Basics

Value: 50019 → 50020 → 50021

Parity: even

Prime: No

Previous Prime: 49999

Next Prime: 50021

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 41 × 61

Divisors: 1, 2, 4, 5, 10, 20, 41, 61, 82, 122

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100001101100100

Octal: 141544

Duodecimal: 24B44

Hexadecimal: c364

Square: 2502000400

Square Root: 223.6515146382872

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 right triangles whose vertices are lattice points in {1,2,...,n} X {1,2,...,n}. A77435

a(n) = 16ⁿ * ∑_k=0..n (-1)^k*binomial(1/2, k)². A358363

Triangle, read by rows, where diagonal m of T equals diagonal m-1 of matrix power T^m for m>1: T(n,k) = [T^n-k](n-1,k) for n>=k>0, with T(n,n)=1 and T(n+1,n)=n+1 for n>=0. A132471

Column 0 of triangle A132471. A132472

Numbers where k-th digit from right is either 0 or k. A63013

a(n) = T(n,0) + T(n,1) + ... + T(n,[ n/2 ]), T given by A026907. A26916

Numbers k such that k and k² use only the digits 0, 2, 3, 4 and 5. A136882

Numbers k such that k and k² use only the digits 0, 2, 4 and 5. A136897

Numbers k such that k and k² use only the digits 0, 2, 4, 5 and 7. A136899

Number of orbits of Aut(Z⁷) as function of the infinity norm n of the representative lattice point of the orbit, when the cardinality of the orbit is equal to 26880. A266397