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206438743610 = 25113160539221
BaseRepresentation
bin1100000001000010110…
…1010011111000111010
3201201212001220202020222
43000100231103320322
511340241304243420
6234500414420042
720625513240161
oct3002055237072
9651761822228
10206438743610
117a60631a610
1234013b01622
131660c273238
149dc529c3d8
155583875225
hex3010b53e3a

206438743610 has 32 divisors (see below), whose sum is σ = 418447102464. Its totient is φ = 72647064000.

The previous prime is 206438743607. The next prime is 206438743633. The reversal of 206438743610 is 16347834602.

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, 30266201 + ... + 30273020.

It is an arithmetic number, because the mean of its divisors is an integer number (13076471952).

Almost surely, 2206438743610 is an apocalyptic number.

206438743610 is an abundant number, since it is smaller than the sum of its proper divisors (212008358854).

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

206438743610 is a wasteful number, since it uses less digits than its factorization.

206438743610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60539270.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 206438743610 in words is "two hundred six billion, four hundred thirty-eight million, seven hundred forty-three thousand, six hundred ten".

Divisors: 1 2 5 10 11 22 31 55 62 110 155 310 341 682 1705 3410 60539221 121078442 302696105 605392210 665931431 1331862862 1876715851 3329657155 3753431702 6659314310 9383579255 18767158510 20643874361 41287748722 103219371805 206438743610