30500305 has 16 divisors (see below), whose sum is σ = 40586688. Its totient is φ = 21816000.

The previous prime is 30500303. The next prime is 30500317. The reversal of 30500305 is 50300503.

It is a happy number.

It is not a de Polignac number, because 30500305 - 2¹ = 30500303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30500303) 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 15 ways as a sum of consecutive naturals, for example, 1191 + ... + 7900.

It is an arithmetic number, because the mean of its divisors is an integer number (2536668).

Almost surely, 2^30500305 is an apocalyptic number.

It is an amenable number.

30500305 is a deficient number, since it is larger than the sum of its proper divisors (10086383).

30500305 is a wasteful number, since it uses less digits than its factorization.

30500305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9168.

The product of its (nonzero) digits is 225, while the sum is 16.

The square root of 30500305 is about 5522.7081219271. The cubic root of 30500305 is about 312.4410299395.

Adding to 30500305 its reverse (50300503), we get a palindrome (80800808).

It can be divided in two parts, 30500 and 305, that multiplied together give a square (9302500 = 3050²).

The spelling of 30500305 in words is "thirty million, five hundred thousand, three hundred five".