Properties of the Number 28097

Twenty-Eight Thousand Ninety-Seven

Basics

Value: 28096 → 28097 → 28098

Parity: odd

Prime: Yes

Previous Prime: 28087

Next Prime: 28099

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 28097

Divisors: 1, 28097

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110111000001

Octal: 66701

Duodecimal: 14315

Hexadecimal: 6dc1

Square: 789441409

Square Root: 167.621597653763

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

Primes of form n² + 14641. A256839

Expansion of φ(x²) / f(-x) in powers of·where φ(), f() are Ramanujan θ functions. A226622

Primes p with p + 2, prime(p) + 2 and prime(prime(p)) + 2 all prime. A236481

Primes 10k + 7 preceding the maximal gaps in A269238. A269239

Numbers m that divide A177754(m) = ∑_k=1..m uphi(k), where uphi is the unitary totient function (A047994). A306950

Primes that remain prime through 3 iterations of function f(x) = 2x + 3. A23273

Primes of the form 10·k² + 7. A195905

a(n) = prime(k) with k = n² + prime(n)². A243892

Primes p such that p³ is the concatenation of two k-digit primes where k is half the number of decimal digits in p³. A248208

Primes of the form 25·n² + 25·n + 47. A281437