30500193 has 24 divisors (see below), whose sum is σ = 43697152. Its totient is φ = 18918144.

The previous prime is 30500189. The next prime is 30500207. The reversal of 30500193 is 39100503.

It is not a de Polignac number, because 30500193 - 2² = 30500189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30500293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109971 + ... + 110247.

Almost surely, 2^30500193 is an apocalyptic number.

It is an amenable number.

30500193 is a deficient number, since it is larger than the sum of its proper divisors (13196959).

30500193 is a wasteful number, since it uses less digits than its factorization.

30500193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 30500193 is about 5522.6979819650. The cubic root of 30500193 is about 312.4406475013.

Adding to 30500193 its reverse (39100503), we get a palindrome (69600696).

The spelling of 30500193 in words is "thirty million, five hundred thousand, one hundred ninety-three".