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205007928 = 2338541997
BaseRepresentation
bin11000011100000…
…10110000111000
3112021202111000020
430032002300320
5404440223203
632202010440
75036352516
oct1416026070
9467674006
10205007928
11a57a3544
12587a6a20
133361b888
141d3274b6
1512ee8153
hexc382c38

205007928 has 16 divisors (see below), whose sum is σ = 512519880. Its totient is φ = 68335968.

The previous prime is 205007921. The next prime is 205007939. The reversal of 205007928 is 829700502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205007921) 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, 4270975 + ... + 4271022.

Almost surely, 2205007928 is an apocalyptic number.

It is an amenable number.

205007928 is an abundant number, since it is smaller than the sum of its proper divisors (307511952).

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

205007928 is a wasteful number, since it uses less digits than its factorization.

205007928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8542006 (or 8542002 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 205007928 is about 14318.0979183689. The cubic root of 205007928 is about 589.6444549413.

The spelling of 205007928 in words is "two hundred five million, seven thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 8541997 17083994 25625991 34167988 51251982 68335976 102503964 205007928