Base | Representation |
---|---|
bin | 10000110101101101… |
… | …011010010010000001 |
3 | 1201200002112020011120 |
4 | 100311231122102001 |
5 | 244012211401021 |
6 | 12150053502453 |
7 | 1210030446615 |
oct | 206555322201 |
9 | 51602466146 |
10 | 18080965761 |
11 | 7739263211 |
12 | 3607341a29 |
13 | 1921c3b411 |
14 | c374a5345 |
15 | 70c54d2c6 |
hex | 435b5a481 |
18080965761 has 8 divisors (see below), whose sum is σ = 24147673344. Its totient is φ = 12034117680.
The previous prime is 18080965751. The next prime is 18080965783. The reversal of 18080965761 is 16756908081.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 18080965761 - 27 = 18080965633 is a prime.
It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (18080965711) 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, 4962750 + ... + 4966391.
It is an arithmetic number, because the mean of its divisors is an integer number (3018459168).
Almost surely, 218080965761 is an apocalyptic number.
It is an amenable number.
18080965761 is a deficient number, since it is larger than the sum of its proper divisors (6066707583).
18080965761 is an equidigital number, since it uses as much as digits as its factorization.
18080965761 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9929751.
The product of its (nonzero) digits is 725760, while the sum is 51.
The spelling of 18080965761 in words is "eighteen billion, eighty million, nine hundred sixty-five thousand, seven hundred sixty-one".
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