30032105 has 4 divisors (see below), whose sum is σ = 36038532. Its totient is φ = 24025680.

The previous prime is 30032099. The next prime is 30032113. The reversal of 30032105 is 50123003.

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 6012304 + 24019801 = 2452^2 + 4901^2 .

It is not a de Polignac number, because 30032105 - 2²⁰ = 28983529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30032105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3003206 + ... + 3003215.

It is an arithmetic number, because the mean of its divisors is an integer number (9009633).

Almost surely, 2^30032105 is an apocalyptic number.

It is an amenable number.

30032105 is a deficient number, since it is larger than the sum of its proper divisors (6006427).

30032105 is an equidigital number, since it uses as much as digits as its factorization.

30032105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6006426.

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

The square root of 30032105 is about 5480.1555634854. The cubic root of 30032105 is about 310.8340529676.

Adding to 30032105 its reverse (50123003), we get a palindrome (80155108).

The spelling of 30032105 in words is "thirty million, thirty-two thousand, one hundred five".