Properties of the Number 28229

Twenty-Eight Thousand Two Hundred Twenty-Nine

Basics

Value: 28228 → 28229 → 28230

Parity: odd

Prime: Yes

Previous Prime: 28219

Next Prime: 28277

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 28229

Divisors: 1, 28229

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111001000101

Octal: 67105

Duodecimal: 14405

Hexadecimal: 6e45

Square: 796876441

Square Root: 168.01488029338353

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

a(0)=2; for n>=1, a(n) = smallest prime p such that there is a gap of exactly 2n between p and next prime, or -1 if no such prime exists. A230

Primes p=prime(i) of level (1,5), i.e., such that A118534(i) = prime(i-5). A118464

Primes of the form k² + (k+1)² + (k+2)² = 3*(k+1)²+2. A27864

Primes of the form k² + 5. A56905

a(n) is the smallest prime q such that, for the previous prime p and the following prime r, the fraction (q-p)/(r-q) has denominator n (or 0, if such a prime does not exist). A168253

Primes having only {2, 8, 9} as digits. A385790

Smallest prime p such that there is a gap of 6n between p and the next prime. A58193

Primes p such that q-p = 48, where q is the next prime after p. A134123

Primes p such that (r-p)/log(p) > 4, where r is the next prime after p. A82889

Lower ends of record gaps between numbers that are either prime or twice a prime. A290488