305031300 has 72 divisors (see below), whose sum is σ = 1008643776. Its totient is φ = 69720960.

The previous prime is 305031283. The next prime is 305031343. The reversal of 305031300 is 3130503.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 305031300.

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 23 ways as a sum of consecutive naturals, for example, 70527 + ... + 74726.

Almost surely, 2^305031300 is an apocalyptic number.

305031300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305031300 is an abundant number, since it is smaller than the sum of its proper divisors (703612476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305031300 is a wasteful number, since it uses less digits than its factorization.

305031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145277 (or 145270 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 15.

The square root of 305031300 is about 17465.1452899768. The cubic root of 305031300 is about 673.1545751875.

Adding to 305031300 its reverse (3130503), we get a palindrome (308161803).

The spelling of 305031300 in words is "three hundred five million, thirty-one thousand, three hundred".