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768065066209 = 7247343443609
BaseRepresentation
bin10110010110101000011…
…11101101010011100001
32201102111202221000110001
423023110033231103201
5100040444124104314
61344502203540001
7106330240225540
oct13132417552341
92642452830401
10768065066209
11276809785331
12104a3352a601
1357574a6c14c
1429262d5c157
1514ea48a9674
hexb2d43ed4e1

768065066209 has 8 divisors (see below), whose sum is σ = 877794174720. Its totient is φ = 658337339616.

The previous prime is 768065066203. The next prime is 768065066213. The reversal of 768065066209 is 902660560867.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 768065066209 - 23 = 768065066201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 768065066209.

It is not an unprimeable number, because it can be changed into a prime (768065066201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1509597 + ... + 1953205.

It is an arithmetic number, because the mean of its divisors is an integer number (109724271840).

Almost surely, 2768065066209 is an apocalyptic number.

It is an amenable number.

768065066209 is a deficient number, since it is larger than the sum of its proper divisors (109729108511).

768065066209 is a wasteful number, since it uses less digits than its factorization.

768065066209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690959.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 768065066209 in words is "seven hundred sixty-eight billion, sixty-five million, sixty-six thousand, two hundred nine".

Divisors: 1 7 247343 443609 1731401 3105263 109723580887 768065066209