30185248 has 12 divisors (see below), whose sum is σ = 59427270. Its totient is φ = 15092608.

The previous prime is 30185231. The next prime is 30185257. The reversal of 30185248 is 84258103.

It can be written as a sum of positive squares in only one way, i.e., 24482704 + 5702544 = 4948^2 + 2388^2 .

It is a super-2 number, since 2×30185248² = 1822298393643008, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 471613 + ... + 471676.

Almost surely, 2^30185248 is an apocalyptic number.

It is an amenable number.

30185248 is a deficient number, since it is larger than the sum of its proper divisors (29242022).

30185248 is an equidigital number, since it uses as much as digits as its factorization.

30185248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943299 (or 943291 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 30185248 is about 5494.1103010406. The cubic root of 30185248 is about 311.3615037881.

The spelling of 30185248 in words is "thirty million, one hundred eighty-five thousand, two hundred forty-eight".