Properties of the Number 50920

Fifty Thousand Nine Hundred Twenty

Basics

Value: 50919 → 50920 → 50921

Parity: even

Prime: No

Previous Prime: 50909

Next Prime: 50923

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 5 × 19 × 67

Divisors: 1, 2, 4, 5, 8, 10, 19, 20, 38, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1100011011101000

Octal: 143350

Duodecimal: 25574

Hexadecimal: c6e8

Square: 2592846400

Square Root: 225.65460332109336

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

Numbers which can be expressed as the product of a number and its reversal in at least two different ways. A66531

Number of non-equivalent ways to choose two points in an equilateral triangle grid of side n. A227327

Numbers k such that sum of divisors of k² is a square. A8847

T(n,k) = Number of (n+1) X (k+1) 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero. A204732

Consider the Diophantine equation x³ + y³ = z³ + 1 (1<x<y<z) or 'Fermat near misses'. Arrange solutions by increasing values of z (see A050791), and increasing values of y in case of ties. Sequence gives values of y. A50793

Expansion of (1-z-sqrt(1-4z))/(1-4z)². A104598

Number of (n+1)X2 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero. A204725

Number of (n+1)X6 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero. A204729

Cullen primes: primes of the form n·2ⁿ+1. A50920