Properties of the Number 28547

Twenty-Eight Thousand Five Hundred Forty-Seven

Basics

Value: 28546 → 28547 → 28548

Parity: odd

Prime: Yes

Previous Prime: 28541

Next Prime: 28549

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 28547

Divisors: 1, 28547

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111110000011

Octal: 67603

Duodecimal: 1462B

Hexadecimal: 6f83

Square: 814931209

Square Root: 168.95857480459523

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 k⁴-k-1. A126422

a(n) = n⁴ - n - 1. A126423

a(n) is the number of binary strings of length n such that there exists a subsequence of length 4 containing 3 or more ones. A118646

Primes p such that q = 4p² + 1 and r = 4q² + 1 are also prime. A122424

Indices of primes of the form 2^t*3^u + 1 in the primes. A174099

Prime Friedman numbers. A112419

a(n) = a(n-1) + a(n-2) + a([(n-1)/2]), where a(0) = 1, a(1) = 1, a(2) = 1. A298352

Discriminants of imaginary quadratic fields with class number 41 (negated). A351679

Primes p such that p+2, n*(p+2)+6 and p*(p+2)+8 are also prime. A130735

Primes p such that 2p + 3, 4p + 9, 3p + 2 and 9p + 8 are also primes. A176619