Properties of the Number 50721

Fifty Thousand Seven Hundred Twenty-One

Basics

Value: 50720 → 50721 → 50722

Parity: odd

Prime: No

Previous Prime: 50707

Next Prime: 50723

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 29 × 53

Divisors: 1, 3, 11, 29, 33, 53, 87, 159, 319, 583

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100011000100001

Octal: 143041

Duodecimal: 25429

Hexadecimal: c621

Square: 2572619841

Square Root: 225.2132322933091

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

The first of three consecutive triangular numbers the sum of which is equal to the sum of three consecutive primes. A298168

Triangular numbers with property that digits alternate in parity. A68882

Nonpalindromic numbers m such that the difference between the square of m and the square of the reversal of m is itself a perfect square. Numbers ending in 0 are excluded. A202386

Nonpalindromic positive integers k such that the absolute value of k² - reverse(k)² is a square. A256515

Generalized Catalan numbers C(-8; n). A64330

Triangular numbers whose digit permutations yield at least two further triangular numbers. A69674

Triangular numbers that are hypotenuse and a leg of a Pythagorean triple. A213188

Numbers that start a run of four consecutive triangular numbers with four distinct prime factors. A349773

Numbers k such that k - sopfr(k) is a positive fourth power. A390141

Triangular numbers with property that digits alternate in parity individually as well as in concatenation with previous terms. A68889