30520106 has 4 divisors (see below), whose sum is σ = 45780162. Its totient is φ = 15260052.

The previous prime is 30520097. The next prime is 30520111. The reversal of 30520106 is 60102503.

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

It can be written as a sum of positive squares in only one way, i.e., 27931225 + 2588881 = 5285^2 + 1609^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7630025 + ... + 7630028.

Almost surely, 2^30520106 is an apocalyptic number.

30520106 is a deficient number, since it is larger than the sum of its proper divisors (15260056).

30520106 is a wasteful number, since it uses less digits than its factorization.

30520106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15260055.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30520106 is about 5524.5005204091. The cubic root of 30520106 is about 312.5086282418.

Adding to 30520106 its reverse (60102503), we get a palindrome (90622609).

The spelling of 30520106 in words is "thirty million, five hundred twenty thousand, one hundred six".