30185728030 has 8 divisors (see below), whose sum is σ = 54334310472. Its totient is φ = 12074291208.

The previous prime is 30185727989. The next prime is 30185728049. The reversal of 30185728030 is 3082758103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30185728030² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509286392 + ... + 1509286411.

It is an arithmetic number, because the mean of its divisors is an integer number (6791788809).

Almost surely, 2^30185728030 is an apocalyptic number.

30185728030 is a deficient number, since it is larger than the sum of its proper divisors (24148582442).

30185728030 is a wasteful number, since it uses less digits than its factorization.

30185728030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018572810.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 30185728030 in words is "thirty billion, one hundred eighty-five million, seven hundred twenty-eight thousand, thirty".