30028002530 has 16 divisors (see below), whose sum is σ = 57229840440. Its totient is φ = 11304659712.

The previous prime is 30028002503. The next prime is 30028002559. The reversal of 30028002530 is 3520082003.

It can be written as a sum of positive squares in 4 ways, for example, as 29942495521 + 85507009 = 173039^2 + 9247^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30028002496 and 30028002505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88317485 + ... + 88317824.

Almost surely, 2^30028002530 is an apocalyptic number.

30028002530 is a deficient number, since it is larger than the sum of its proper divisors (27201837910).

30028002530 is a wasteful number, since it uses less digits than its factorization.

30028002530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176635333.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 30028002530 its reverse (3520082003), we get a palindrome (33548084533).

The spelling of 30028002530 in words is "thirty billion, twenty-eight million, two thousand, five hundred thirty".