305113050 has 144 divisors (see below), whose sum is σ = 911914848. Its totient is φ = 72508800.

The previous prime is 305113043. The next prime is 305113087. The reversal of 305113050 is 50311503.

It is a happy number.

It is a super-4 number, since 4×305113050⁴ (a number of 35 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 261769 + ... + 262931.

It is an arithmetic number, because the mean of its divisors is an integer number (6332742).

Almost surely, 2^305113050 is an apocalyptic number.

305113050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 305113050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455957424).

305113050 is an abundant number, since it is smaller than the sum of its proper divisors (606801798).

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

305113050 is a wasteful number, since it uses less digits than its factorization.

305113050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 305113050 is about 17467.4855087960. The cubic root of 305113050 is about 673.2147061436.

Adding to 305113050 its reverse (50311503), we get a palindrome (355424553).

The spelling of 305113050 in words is "three hundred five million, one hundred thirteen thousand, fifty".