30185145204 has 48 divisors (see below), whose sum is σ = 74410963200. Its totient is φ = 9508057216.

The previous prime is 30185145197. The next prime is 30185145223. The reversal of 30185145204 is 40254158103.

It is a super-2 number, since 2×30185145204² (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 15 ways as a sum of consecutive naturals, for example, 906399 + ... + 939110.

It is an arithmetic number, because the mean of its divisors is an integer number (1550228400).

Almost surely, 2^30185145204 is an apocalyptic number.

It is an amenable number.

30185145204 is an abundant number, since it is smaller than the sum of its proper divisors (44225817996).

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

30185145204 is a wasteful number, since it uses less digits than its factorization.

30185145204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845592 (or 1845590 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 30185145204 in words is "thirty billion, one hundred eighty-five million, one hundred forty-five thousand, two hundred four".