Properties of the Number 28027

Twenty-Eight Thousand Twenty-Seven

Basics

Value: 28026 → 28027 → 28028

Parity: odd

Prime: Yes

Previous Prime: 28019

Next Prime: 28031

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 28027

Divisors: 1, 28027

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110101111011

Octal: 66573

Duodecimal: 14277

Hexadecimal: 6d7b

Square: 785512729

Square Root: 167.4126637981727

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 the form 11·n² + 55·n + 43. A292578

Maximum fixed points under iteration of sum of cubes of digits in base n. A226026

Smallest odd prime number Q such that Q·2^P-1 is also prime with P Mersenne prime exponent A000043(n). A249383

Number of irredundant sets in the n-wheel graph. A290494

a(n) = 139·n² - 2307·n + 3331. A230307

a(1) = 2; a(n + 1) = smallest prime > a(n) such that a(n + 1) - a(n) is the product of 8 primes. A285693

Discriminants of imaginary quadratic fields with class number 33 (negated). A351671

Primes having only {0, 2, 7, 8} as digits. A386053

Expansion of 1 / ((1 - 3·x)*(1 - 4·x)*(1 - 5·x)*(1 - 8·x)). A28027