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204816252 = 22317068021
BaseRepresentation
bin11000011010100…
…11111101111100
3112021101202002010
430031103331330
5404413110002
632153531220
75034623634
oct1415237574
9467352063
10204816252
11a5682533
1258713b10
1333582564
141d2b76c4
1512eab46c
hexc353f7c

204816252 has 12 divisors (see below), whose sum is σ = 477904616. Its totient is φ = 68272080.

The previous prime is 204816217. The next prime is 204816259. The reversal of 204816252 is 252618402.

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

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204816259) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8533999 + ... + 8534022.

Almost surely, 2204816252 is an apocalyptic number.

It is an amenable number.

204816252 is an abundant number, since it is smaller than the sum of its proper divisors (273088364).

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

204816252 is a wasteful number, since it uses less digits than its factorization.

204816252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17068028 (or 17068026 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 204816252 is about 14311.4028662462. The cubic root of 204816252 is about 589.4606312659.

The spelling of 204816252 in words is "two hundred four million, eight hundred sixteen thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 17068021 34136042 51204063 68272084 102408126 204816252