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205085050 = 25219613539
BaseRepresentation
bin11000011100101…
…01100101111010
3112021220101210121
430032111211322
5410000210200
632203403454
75040123412
oct1416254572
9467811717
10205085050
11a5846485
125882358a
1333647a01
141d347642
1513010e1a
hexc39597a

205085050 has 48 divisors (see below), whose sum is σ = 408232800. Its totient is φ = 76420800.

The previous prime is 205085011. The next prime is 205085053. The reversal of 205085050 is 50580502.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (205085053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56181 + ... + 59719.

It is an arithmetic number, because the mean of its divisors is an integer number (8504850).

Almost surely, 2205085050 is an apocalyptic number.

205085050 is a deficient number, since it is larger than the sum of its proper divisors (203147750).

205085050 is a wasteful number, since it uses less digits than its factorization.

205085050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631 (or 3626 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 205085050 is about 14320.7908301183. The cubic root of 205085050 is about 589.7183851854.

The spelling of 205085050 in words is "two hundred five million, eighty-five thousand, fifty".

Divisors: 1 2 5 10 19 25 38 50 61 95 122 190 305 475 610 950 1159 1525 2318 3050 3539 5795 7078 11590 17695 28975 35390 57950 67241 88475 134482 176950 215879 336205 431758 672410 1079395 1681025 2158790 3362050 4101701 5396975 8203402 10793950 20508505 41017010 102542525 205085050