30102250 has 24 divisors (see below), whose sum is σ = 56514276. Its totient is φ = 12006200.

The previous prime is 30102227. The next prime is 30102263. The reversal of 30102250 is 5220103.

It can be written as a sum of positive squares in 2 ways, for example, as 20349121 + 9753129 = 4511^2 + 3123^2 .

It is a super-2 number, since 2×30102250² = 1812290910125000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30102250.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86577 + ... + 86923.

Almost surely, 2^30102250 is an apocalyptic number.

30102250 is a deficient number, since it is larger than the sum of its proper divisors (26412026).

30102250 is an frugal number, since it uses more digits than its factorization.

30102250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 30102250 is about 5486.5517403921. The cubic root of 30102250 is about 311.0758664250.

Adding to 30102250 its reverse (5220103), we get a palindrome (35322353).

The spelling of 30102250 in words is "thirty million, one hundred two thousand, two hundred fifty".