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204072355 = 5471038431
BaseRepresentation
bin11000010100111…
…10010110100011
3112012222221122101
430022132112203
5404220303410
632125551231
75025405064
oct1412362643
9465887571
10204072355
11a5214643
1258415517
1333381a96
141d16256b
1512db0d3a
hexc29e5a3

204072355 has 16 divisors (see below), whose sum is σ = 252555264. Its totient is φ = 158214240.

The previous prime is 204072317. The next prime is 204072359. The reversal of 204072355 is 553270402.

204072355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204072355 - 27 = 204072227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204072359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19990 + ... + 28420.

It is an arithmetic number, because the mean of its divisors is an integer number (15784704).

Almost surely, 2204072355 is an apocalyptic number.

204072355 is a deficient number, since it is larger than the sum of its proper divisors (48482909).

204072355 is a wasteful number, since it uses less digits than its factorization.

204072355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8586.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 204072355 is about 14285.3895641666. The cubic root of 204072355 is about 588.7461209951.

The spelling of 204072355 in words is "two hundred four million, seventy-two thousand, three hundred fifty-five".

Divisors: 1 5 47 103 235 515 4841 8431 24205 42155 396257 868393 1981285 4341965 40814471 204072355