30193285 has 4 divisors (see below), whose sum is σ = 36231948. Its totient is φ = 24154624.

The previous prime is 30193283. The next prime is 30193297. The reversal of 30193285 is 58239103.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19210689 + 10982596 = 4383^2 + 3314^2 .

It is a cyclic number.

It is not a de Polignac number, because 30193285 - 2¹ = 30193283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30193283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3019324 + ... + 3019333.

It is an arithmetic number, because the mean of its divisors is an integer number (9057987).

Almost surely, 2^30193285 is an apocalyptic number.

It is an amenable number.

30193285 is a deficient number, since it is larger than the sum of its proper divisors (6038663).

30193285 is an equidigital number, since it uses as much as digits as its factorization.

30193285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6038662.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 30193285 is about 5494.8416719684. The cubic root of 30193285 is about 311.3891352804.

The spelling of 30193285 in words is "thirty million, one hundred ninety-three thousand, two hundred eighty-five".