102808250 has 16 divisors (see below), whose sum is σ = 192457512. Its totient is φ = 41123200.

The previous prime is 102808247. The next prime is 102808271. The reversal of 102808250 is 52808201.

It can be written as a sum of positive squares in 4 ways, for example, as 45306361 + 57501889 = 6731^2 + 7583^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205367 + ... + 205866.

Almost surely, 2^102808250 is an apocalyptic number.

102808250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102808250 is a deficient number, since it is larger than the sum of its proper divisors (89649262).

102808250 is an equidigital number, since it uses as much as digits as its factorization.

102808250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411250 (or 411240 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 102808250 is about 10139.4403198599. The cubic root of 102808250 is about 468.4637481930.

The spelling of 102808250 in words is "one hundred two million, eight hundred eight thousand, two hundred fifty".