Properties of the Number 28297

Twenty-Eight Thousand Two Hundred Ninety-Seven

Basics

Value: 28296 → 28297 → 28298

Parity: odd

Prime: Yes

Previous Prime: 28289

Next Prime: 28307

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 28297

Divisors: 1, 28297

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111010001001

Octal: 67211

Duodecimal: 14461

Hexadecimal: 6e89

Square: 800720209

Square Root: 168.21712160181556

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

Prime p1 of consecutive primes p1, p2, where p2-p1=10, and p1, p2 are in different centuries. A160500

Primes followed by a [10,2,10] prime difference pattern of A001223. A52376

Fifth term of weak prime sextet: p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m). A54832

Primes p such that p and p² have same digit sum. A58370

Indices of tetrahedral numbers that are Fermat pseudoprimes to base 2. A321866

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 92 ones. A31860

Numbers k such that k and k² use only the digits 0, 2, 7, 8 and 9. A136925

Prime numbers p such that p +- ((p-1)/6) are primes. A137724

Primes p such that 2·p + 1 is abundant. A267476

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 505", based on the 5-celled von Neumann neighborhood. A272583