30300205 has 24 divisors (see below), whose sum is σ = 41621832. Its totient is φ = 21046272.

The previous prime is 30300197. The next prime is 30300211. The reversal of 30300205 is 50200303.

It can be written as a sum of positive squares in 12 ways, for example, as 2653641 + 27646564 = 1629^2 + 5258^2 .

It is not a de Polignac number, because 30300205 - 2³ = 30300197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 17979 + ... + 19591.

It is an arithmetic number, because the mean of its divisors is an integer number (1734243).

Almost surely, 2^30300205 is an apocalyptic number.

It is an amenable number.

30300205 is a deficient number, since it is larger than the sum of its proper divisors (11321627).

30300205 is a wasteful number, since it uses less digits than its factorization.

30300205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 13.

The square root of 30300205 is about 5504.5621987584. The cubic root of 30300205 is about 311.7562644145.

Adding to 30300205 its reverse (50200303), we get a palindrome (80500508).

The spelling of 30300205 in words is "thirty million, three hundred thousand, two hundred five".