Properties of the Number 65543

Sixty-Five Thousand Five Hundred Forty-Three

Basics

Value: 65542 → 65543 → 65544

Parity: odd

Prime: Yes

Previous Prime: 65539

Next Prime: 65551

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 65543

Divisors: 1, 65543

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000000000000111

Octal: 200007

Duodecimal: 31B1B

Hexadecimal: 10007

Square: 4295884849

Square Root: 256.01367150994105

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 2^k + 7. A104066

Primes of the form m = 2ⁱ + 2^j - 1, where i > j >= 0. A239712

Smallest odd prime base q such that p³ divides q^p-1 - 1, where p = prime(n). A125637

a(n) = 2ⁿ + 7. A168415

Fermat numbers of order 7 or F(n,7) = 2^2ⁿ+7. A130730

Permutation of natural numbers: a(n) = A156552(1+A005940(1+n)). A297163

Sums of three Fermat numbers. A155877

Numbers k such that A163511(k) is a seventh power. A366287

a(1) = 11; a(n) = if n == 2 mod 3 then a(n-1)-3, if n == 0 mod 3 then a(n-1)-2, if n == 1 mod 3 then a(n-1)*2. A85688

Smallest prime p > 3 such that p-1 has a prime factor > (p-1)^n/(n+1). A111671