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206894760009 = 3721407447347
BaseRepresentation
bin1100000010101111100…
…0111000000001001001
3201210000211222210011020
43000223320320001021
511342210024310014
6235013544423053
720643021305100
oct3005370700111
9653024883136
10206894760009
117a81a775473
1234120777a89
1316682898522
14a029a85037
1555ad9011a9
hex302be38049

206894760009 has 12 divisors (see below), whose sum is σ = 320897995344. Its totient is φ = 118225577064.

The previous prime is 206894759989. The next prime is 206894760013. The reversal of 206894760009 is 900067498602.

It is a happy number.

It is not a de Polignac number, because 206894760009 - 25 = 206894759977 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (206894760109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 703723527 + ... + 703723820.

It is an arithmetic number, because the mean of its divisors is an integer number (26741499612).

Almost surely, 2206894760009 is an apocalyptic number.

It is an amenable number.

206894760009 is a deficient number, since it is larger than the sum of its proper divisors (114003235335).

206894760009 is a wasteful number, since it uses less digits than its factorization.

206894760009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407447364 (or 1407447357 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 206894760009 in words is "two hundred six billion, eight hundred ninety-four million, seven hundred sixty thousand, nine".

Divisors: 1 3 7 21 49 147 1407447347 4222342041 9852131429 29556394287 68964920003 206894760009