30512104 has 48 divisors (see below), whose sum is σ = 67028580. Its totient is φ = 12983040.

The previous prime is 30512101. The next prime is 30512107. The reversal of 30512104 is 40121503.

It is an interprime number because it is at equal distance from previous prime (30512101) and next prime (30512107).

It can be written as a sum of positive squares in 2 ways, for example, as 30272004 + 240100 = 5502^2 + 490^2 .

It is not an unprimeable number, because it can be changed into a prime (30512101) 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 11 ways as a sum of consecutive naturals, for example, 108444 + ... + 108724.

Almost surely, 2^30512104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30512104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33514290).

30512104 is an abundant number, since it is smaller than the sum of its proper divisors (36516476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30512104 is a wasteful number, since it uses less digits than its factorization.

30512104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30512104 is about 5523.7762445631. The cubic root of 30512104 is about 312.4813138693.

Adding to 30512104 its reverse (40121503), we get a palindrome (70633607).

The spelling of 30512104 in words is "thirty million, five hundred twelve thousand, one hundred four".