Base | Representation |
---|---|
bin | 111111101001101101… |
… | …000011011000100101 |
3 | 20112102002221121121120 |
4 | 333221231003120211 |
5 | 2104432411123414 |
6 | 51221503204153 |
7 | 4636443260223 |
oct | 775155033045 |
9 | 215362847546 |
10 | 68345411109 |
11 | 26a92225a38 |
12 | 112b48a6659 |
13 | 65a270a881 |
14 | 3444d91b13 |
15 | 1ba022c2a9 |
hex | fe9b43625 |
68345411109 has 8 divisors (see below), whose sum is σ = 91197480000. Its totient is φ = 45528474816.
The previous prime is 68345411089. The next prime is 68345411149. The reversal of 68345411109 is 90111454386.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68345411109 - 211 = 68345409061 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68345411149) 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, 8778609 + ... + 8786390.
It is an arithmetic number, because the mean of its divisors is an integer number (11399685000).
Almost surely, 268345411109 is an apocalyptic number.
It is an amenable number.
68345411109 is a deficient number, since it is larger than the sum of its proper divisors (22852068891).
68345411109 is a wasteful number, since it uses less digits than its factorization.
68345411109 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17566299.
The product of its (nonzero) digits is 103680, while the sum is 42.
The spelling of 68345411109 in words is "sixty-eight billion, three hundred forty-five million, four hundred eleven thousand, one hundred nine".
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