305204313 has 8 divisors (see below), whose sum is σ = 412513888. Its totient is φ = 200682144.

The previous prime is 305204311. The next prime is 305204321. The reversal of 305204313 is 313402503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 305204313 - 2¹ = 305204311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 305204313.

It is not an unprimeable number, because it can be changed into a prime (305204311) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 696595 + ... + 697032.

It is an arithmetic number, because the mean of its divisors is an integer number (51564236).

Almost surely, 2^305204313 is an apocalyptic number.

It is an amenable number.

305204313 is a deficient number, since it is larger than the sum of its proper divisors (107309575).

305204313 is a wasteful number, since it uses less digits than its factorization.

305204313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393703.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 305204313 is about 17470.0976814670. The cubic root of 305204313 is about 673.2818216701.

Adding to 305204313 its reverse (313402503), we get a palindrome (618606816).

The spelling of 305204313 in words is "three hundred five million, two hundred four thousand, three hundred thirteen".