Properties of the Number 99643

Ninety-Nine Thousand Six Hundred Forty-Three

Basics

Value: 99642 → 99643 → 99644

Parity: odd

Prime: Yes

Previous Prime: 99623

Next Prime: 99661

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 99643

Divisors: 1, 99643

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010100111011

Octal: 302473

Duodecimal: 497B7

Hexadecimal: 1853b

Square: 9928727449

Square Root: 315.66279476682075

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

Left border of triangle A137680. A137682

Largest n-digit left-truncatable prime. A127892

Least prime p such that prime(p·n)-1 is a square, or 0 if no such p exists. A259764

Primes p such that number of primes produced according to rules stipulated in Honaker's A048853 is 2. A50664

a(1) = 2; a(n+1) is the least prime p not already used such that p-a(n) is not equal to a(k+1)-a(k) for any k < n. A101595

Palindromic primes p(k) = palprime(k) such that their sum of digits ("sod") equals sum of digits of their palprime index k. A176465

Continued fraction for π + 1/π. A99643