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204424284 = 22317035357
BaseRepresentation
bin11000010111101…
…00010001011100
3112020122211101210
430023310101130
5404313034114
632141304420
75031402111
oct1413642134
9466584353
10204424284
11a5434a99
1258565110
133347601c
141d214908
1512e30259
hexc2f445c

204424284 has 12 divisors (see below), whose sum is σ = 476990024. Its totient is φ = 68141424.

The previous prime is 204424247. The next prime is 204424357. The reversal of 204424284 is 482424402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8517667 + ... + 8517690.

Almost surely, 2204424284 is an apocalyptic number.

It is an amenable number.

204424284 is an abundant number, since it is smaller than the sum of its proper divisors (272565740).

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

204424284 is a wasteful number, since it uses less digits than its factorization.

204424284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17035364 (or 17035362 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

The square root of 204424284 is about 14297.7020531273. The cubic root of 204424284 is about 589.0843635134.

Adding to 204424284 its reverse (482424402), we get a palindrome (686848686).

The spelling of 204424284 in words is "two hundred four million, four hundred twenty-four thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 17035357 34070714 51106071 68141428 102212142 204424284