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205674130 = 25791391873
BaseRepresentation
bin11000100001001…
…01011010010010
3112100000022212101
430100211122102
5410123033010
632224151014
75045126014
oct1420453222
9470008771
10205674130
11a6109022
1258a6846a
13337c2b8c
141d45c1b4
15130ca73a
hexc425692

205674130 has 32 divisors (see below), whose sum is σ = 377798400. Its totient is φ = 80600832.

The previous prime is 205674089. The next prime is 205674151. The reversal of 205674130 is 31476502.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 108874 + ... + 110746.

It is an arithmetic number, because the mean of its divisors is an integer number (11806200).

Almost surely, 2205674130 is an apocalyptic number.

205674130 is a deficient number, since it is larger than the sum of its proper divisors (172124270).

205674130 is a wasteful number, since it uses less digits than its factorization.

205674130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 205674130 is about 14341.3433819848. The cubic root of 205674130 is about 590.2824750984.

The spelling of 205674130 in words is "two hundred five million, six hundred seventy-four thousand, one hundred thirty".

Divisors: 1 2 5 10 79 139 158 278 395 695 790 1390 1873 3746 9365 10981 18730 21962 54905 109810 147967 260347 295934 520694 739835 1301735 1479670 2603470 20567413 41134826 102837065 205674130