Properties of the Number 28219

Twenty-Eight Thousand Two Hundred Nineteen

Basics

Value: 28218 → 28219 → 28220

Parity: odd

Prime: Yes

Previous Prime: 28211

Next Prime: 28229

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 28219

Divisors: 1, 28219

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111000111011

Octal: 67073

Duodecimal: 143B7

Hexadecimal: 6e3b

Square: 796311961

Square Root: 167.98511838850487

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

Class 7- primes. A81426

Primes of form k² - 5. A28877

Primes of the form 3·m² - 8. A201781

Primes p such that (p+nextprime(p))/2 is a perfect square. A225195

Lesser of consecutive primes whose average is a perfect power. A242380

Primes of the form 9n² - 5. A201960

Largest prime factor of the largest squarefree practical number comprising n prime factors. A267422

Primes p that remain prime through 3 iterations of function f(x) = 6x - 1. A289109

Integers k such that the sum of the first k noncubes is a square. A373767

Expansion of 1/((1 - 6·x)*(1 - 10·x)*(1 - 11·x)*(1 - 12·x)). A28219