30082138 has 8 divisors (see below), whose sum is σ = 45357588. Its totient is φ = 14962944.

The previous prime is 30082133. The next prime is 30082159. The reversal of 30082138 is 83128003.

It can be written as a sum of positive squares in 2 ways, for example, as 29127609 + 954529 = 5397^2 + 977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30082133) by changing a digit.

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, 38581 + ... + 39352.

Almost surely, 2^30082138 is an apocalyptic number.

30082138 is a deficient number, since it is larger than the sum of its proper divisors (15275450).

30082138 is a wasteful number, since it uses less digits than its factorization.

30082138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78128.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 30082138 is about 5484.7185889524. The cubic root of 30082138 is about 311.0065720292.

The spelling of 30082138 in words is "thirty million, eighty-two thousand, one hundred thirty-eight".