30288105 has 12 divisors (see below), whose sum is σ = 52499460. Its totient is φ = 16153632.

The previous prime is 30288061. The next prime is 30288113. The reversal of 30288105 is 50188203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20684304 + 9603801 = 4548^2 + 3099^2 .

It is not a de Polignac number, because 30288105 - 2¹⁴ = 30271721 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 336490 + ... + 336579.

It is an arithmetic number, because the mean of its divisors is an integer number (4374955).

Almost surely, 2^30288105 is an apocalyptic number.

It is an amenable number.

30288105 is a deficient number, since it is larger than the sum of its proper divisors (22211355).

30288105 is a wasteful number, since it uses less digits than its factorization.

30288105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673080 (or 673077 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 30288105 is about 5503.4630006933. The cubic root of 30288105 is about 311.7147602614.

The spelling of 30288105 in words is "thirty million, two hundred eighty-eight thousand, one hundred five".