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204728095 = 51113286333
BaseRepresentation
bin11000011001111…
…10011100011111
3112021020021011001
430030332130133
5404402244340
632152011131
75034105625
oct1414763437
9467207131
10204728095
11a5622280
1258690aa7
13335513b0
141d293515
1512e9029a
hexc33e71f

204728095 has 16 divisors (see below), whose sum is σ = 288624672. Its totient is φ = 137439360.

The previous prime is 204728077. The next prime is 204728101. The reversal of 204728095 is 590827402.

It is not a de Polignac number, because 204728095 - 25 = 204728063 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 142452 + ... + 143881.

It is an arithmetic number, because the mean of its divisors is an integer number (18039042).

Almost surely, 2204728095 is an apocalyptic number.

204728095 is a deficient number, since it is larger than the sum of its proper divisors (83896577).

204728095 is a wasteful number, since it uses less digits than its factorization.

204728095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286362.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 204728095 is about 14308.3225781361. The cubic root of 204728095 is about 589.3760472582.

The spelling of 204728095 in words is "two hundred four million, seven hundred twenty-eight thousand, ninety-five".

Divisors: 1 5 11 13 55 65 143 715 286333 1431665 3149663 3722329 15748315 18611645 40945619 204728095