102272780 has 12 divisors (see below), whose sum is σ = 214772880. Its totient is φ = 40909104.

The previous prime is 102272713. The next prime is 102272803. The reversal of 102272780 is 87272201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556800 + ... + 2556839.

It is an arithmetic number, because the mean of its divisors is an integer number (17897740).

Almost surely, 2^102272780 is an apocalyptic number.

102272780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102272780 is an abundant number, since it is smaller than the sum of its proper divisors (112500100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102272780 is a wasteful number, since it uses less digits than its factorization.

102272780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5113648 (or 5113646 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 102272780 is about 10113.0005438544. Note that the first 3 decimals coincide. The cubic root of 102272780 is about 467.6490111891.

The spelling of 102272780 in words is "one hundred two million, two hundred seventy-two thousand, seven hundred eighty".