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204311224 = 23131964531
BaseRepresentation
bin11000010110110…
…00101010111000
3112020110002022101
430023120222320
5404300424344
632135033144
75030421355
oct1413305270
9466402271
10204311224
11a5368057
125850b7b4
1333436720
141d1c562c
1512e0b9d4
hexc2d8ab8

204311224 has 16 divisors (see below), whose sum is σ = 412551720. Its totient is φ = 94297440.

The previous prime is 204311203. The next prime is 204311227. The reversal of 204311224 is 422113402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204311227) by changing a digit.

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, 982162 + ... + 982369.

Almost surely, 2204311224 is an apocalyptic number.

It is an amenable number.

204311224 is an abundant number, since it is smaller than the sum of its proper divisors (208240496).

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

204311224 is a wasteful number, since it uses less digits than its factorization.

204311224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964550 (or 1964546 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 204311224 is about 14293.7477240925. The cubic root of 204311224 is about 588.9757427582.

Adding to 204311224 its reverse (422113402), we get a palindrome (626424626).

The spelling of 204311224 in words is "two hundred four million, three hundred eleven thousand, two hundred twenty-four".

Divisors: 1 2 4 8 13 26 52 104 1964531 3929062 7858124 15716248 25538903 51077806 102155612 204311224