30312104 has 8 divisors (see below), whose sum is σ = 56835210. Its totient is φ = 15156048.

The previous prime is 30312103. The next prime is 30312127. The reversal of 30312104 is 40121303.

It can be written as a sum of positive squares in only one way, i.e., 30228004 + 84100 = 5498^2 + 290^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (30312103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1894499 + ... + 1894514.

Almost surely, 2^30312104 is an apocalyptic number.

It is an amenable number.

30312104 is a deficient number, since it is larger than the sum of its proper divisors (26523106).

30312104 is a wasteful number, since it uses less digits than its factorization.

30312104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3789019 (or 3789015 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30312104 is about 5505.6429234014. The cubic root of 30312104 is about 311.7970683442.

Adding to 30312104 its reverse (40121303), we get a palindrome (70433407).

The spelling of 30312104 in words is "thirty million, three hundred twelve thousand, one hundred four".