8128

8128 is an example of a perfect number, which means it equals the sum of its proper divisors (divisors excluding itself). For 8128, its divisors (1, 2, 4, 8, 16, 32, 64, 127, 254, 508, 1016, 2032, 4064) add up precisely to 8128. Perfect numbers are rare and have special mathematical properties, often related to perfect shapes and patterns in number theory. The concept dates back to ancient mathematics and is currently connected to the properties of Mersenne primes.