Properties of the Number 86243

Eighty-Six Thousand Two Hundred Forty-Three

Basics

Value: 86242 → 86243 → 86244

Parity: odd

Prime: Yes

Previous Prime: 86239

Next Prime: 86249

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 86243

Divisors: 1, 86243

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101000011100011

Octal: 250343

Duodecimal: 41AAB

Hexadecimal: 150e3

Square: 7437855049

Square Root: 293.6715852785216

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

Mersenne exponents: primes p such that 2^p - 1 is prime. Then 2^p - 1 is called a Mersenne prime. A43

Mersenne prime indices that are also Gaussian primes. A112633

Numbers m such that 2^m + (-1)^m is prime. A285929

Numbers k such that ∑_i=1..k i⁹ divides ∏_i=1..k i⁹. A166609

Primes p (A000043) such that 2^p-1 is prime (A000668) and congruent to 607 mod 6! A145045

Odd Mersenne exponents. A174265

Numbers k such that exactly one of 2^k - 1 and 2^k + 1 is a prime. A174269

Let M_p = 2^p-1 be a Mersenne prime, where p is an odd prime. Sequence lists p such that b_p-2 == 2^(p+1/2) mod M_p, where {b_k} is defined in the Comments. A354167

Prime numbers preceded by two consecutive numbers which are products of four distinct primes (or tetraprimes). A361796

Bisection of A000043. A99983