30105748 has 12 divisors (see below), whose sum is σ = 53039700. Its totient is φ = 14951552.

The previous prime is 30105739. The next prime is 30105769. The reversal of 30105748 is 84750103.

It can be written as a sum of positive squares in 2 ways, for example, as 16548624 + 13557124 = 4068^2 + 3682^2 .

It is a congruent number.

It is an unprimeable number.

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, 24661 + ... + 25852.

It is an arithmetic number, because the mean of its divisors is an integer number (4419975).

Almost surely, 2^30105748 is an apocalyptic number.

It is an amenable number.

30105748 is a deficient number, since it is larger than the sum of its proper divisors (22933952).

30105748 is a wasteful number, since it uses less digits than its factorization.

30105748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50666 (or 50664 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 30105748 is about 5486.8705105916. The cubic root of 30105748 is about 311.0879153719.

The spelling of 30105748 in words is "thirty million, one hundred five thousand, seven hundred forty-eight".