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304444040 = 2357611101
BaseRepresentation
bin10010001001010…
…111001010001000
3210012212100201012
4102021113022020
51110414202130
650113143052
710354505645
oct2211271210
9705770635
10304444040
1114693a34a
1285b5aa88
134b0c5804
142c60cdcc
151bada995
hex12257288

304444040 has 16 divisors (see below), whose sum is σ = 684999180. Its totient is φ = 121777600.

The previous prime is 304444027. The next prime is 304444043. The reversal of 304444040 is 40444403.

304444040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 267453316 + 36990724 = 16354^2 + 6082^2 .

It is a junction number, because it is equal to n+sod(n) for n = 304443997 and 304444015.

It is not an unprimeable number, because it can be changed into a prime (304444043) 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 3 ways as a sum of consecutive naturals, for example, 3805511 + ... + 3805590.

Almost surely, 2304444040 is an apocalyptic number.

It is an amenable number.

304444040 is an abundant number, since it is smaller than the sum of its proper divisors (380555140).

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

304444040 is a wasteful number, since it uses less digits than its factorization.

304444040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7611112 (or 7611108 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 304444040 is about 17448.3248479618. The cubic root of 304444040 is about 672.7223018204.

Adding to 304444040 its reverse (40444403), we get a palindrome (344888443).

The spelling of 304444040 in words is "three hundred four million, four hundred forty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 7611101 15222202 30444404 38055505 60888808 76111010 152222020 304444040