30528083 has 4 divisors (see below), whose sum is σ = 30958128. Its totient is φ = 30098040.

The previous prime is 30528011. The next prime is 30528119. The reversal of 30528083 is 38082503.

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

It is a cyclic number.

It is not a de Polignac number, because 30528083 - 2¹⁰ = 30527059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30525083) 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, 214916 + ... + 215057.

It is an arithmetic number, because the mean of its divisors is an integer number (7739532).

Almost surely, 2^30528083 is an apocalyptic number.

30528083 is a deficient number, since it is larger than the sum of its proper divisors (430045).

30528083 is an equidigital number, since it uses as much as digits as its factorization.

30528083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430044.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 30528083 is about 5525.2224389612. Note that the first 3 decimals coincide. The cubic root of 30528083 is about 312.5358525266.

The spelling of 30528083 in words is "thirty million, five hundred twenty-eight thousand, eighty-three".