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304304404 = 22247730713
BaseRepresentation
bin10010001000110…
…101000100010100
3210012121021011111
4102020311010110
51110400220104
650110144404
710353354565
oct2210650424
9705537144
10304304404
11146854448
1285ab2104
134b0770a1
142c5b416c
151baae404
hex12235114

304304404 has 12 divisors (see below), whose sum is σ = 532765044. Its totient is φ = 152085824.

The previous prime is 304304393. The next prime is 304304443. The reversal of 304304404 is 404403403.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 220581904 + 83722500 = 14852^2 + 9150^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5449 + ... + 25264.

It is an arithmetic number, because the mean of its divisors is an integer number (44397087).

Almost surely, 2304304404 is an apocalyptic number.

It is an amenable number.

304304404 is a deficient number, since it is larger than the sum of its proper divisors (228460640).

304304404 is a wasteful number, since it uses less digits than its factorization.

304304404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33194 (or 33192 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 304304404 is about 17444.3229733917. The cubic root of 304304404 is about 672.6194360452.

Adding to 304304404 its reverse (404403403), we get a palindrome (708707807).

The spelling of 304304404 in words is "three hundred four million, three hundred four thousand, four hundred four".

Divisors: 1 2 4 2477 4954 9908 30713 61426 122852 76076101 152152202 304304404