30000006500 has 24 divisors (see below), whose sum is σ = 65520015288. Its totient is φ = 12000002400.

The previous prime is 30000006451. The next prime is 30000006521. The reversal of 30000006500 is 560000003.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9021960256 + 20978046244 = 94984^2 + 144838^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29999507 + ... + 30000506.

It is an arithmetic number, because the mean of its divisors is an integer number (2730000637).

Almost surely, 2^30000006500 is an apocalyptic number.

It is an amenable number.

30000006500 is an abundant number, since it is smaller than the sum of its proper divisors (35520008788).

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

30000006500 is a wasteful number, since it uses less digits than its factorization.

30000006500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60000032 (or 60000020 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

Adding to 30000006500 its reverse (560000003), we get a palindrome (30560006503).

The spelling of 30000006500 in words is "thirty billion, six thousand, five hundred".