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206042910 = 2359297393
BaseRepresentation
bin11000100011111…
…11011100011110
3112100201001201220
430101333130132
5410221333120
632240114210
75051223123
oct1421773436
9470631656
10206042910
11a63400a7
1259005966
13338c19a8
141d51674a
151314eb40
hexc47f71e

206042910 has 32 divisors (see below), whose sum is σ = 495102240. Its totient is φ = 54878208.

The previous prime is 206042861. The next prime is 206042911. The reversal of 206042910 is 19240602.

It is a super-2 number, since 2×2060429102 = 84907361522536200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206042911) by changing a digit.

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, 24174 + ... + 31566.

It is an arithmetic number, because the mean of its divisors is an integer number (15471945).

Almost surely, 2206042910 is an apocalyptic number.

206042910 is an abundant number, since it is smaller than the sum of its proper divisors (289059330).

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

206042910 is a wasteful number, since it uses less digits than its factorization.

206042910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8332.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 206042910 is about 14354.1948572534. The cubic root of 206042910 is about 590.6350626208.

The spelling of 206042910 in words is "two hundred six million, forty-two thousand, nine hundred ten".

Divisors: 1 2 3 5 6 10 15 30 929 1858 2787 4645 5574 7393 9290 13935 14786 22179 27870 36965 44358 73930 110895 221790 6868097 13736194 20604291 34340485 41208582 68680970 103021455 206042910