Base | Representation |
---|---|
bin | 111111011101100010… |
… | …100110111110110100 |
3 | 20111212212222001220222 |
4 | 333131202212332310 |
5 | 2104023141043430 |
6 | 51145333313512 |
7 | 4631414614325 |
oct | 773542467664 |
9 | 214785861828 |
10 | 68141346740 |
11 | 269980173a5 |
12 | 11258495898 |
13 | 656c35c61c |
14 | 3425c3244c |
15 | 1b8c36d9e5 |
hex | fdd8a6fb4 |
68141346740 has 24 divisors (see below), whose sum is σ = 146964311592. Its totient is φ = 26519875200.
The previous prime is 68141346733. The next prime is 68141346803. The reversal of 68141346740 is 4764314186.
It can be written as a sum of positive squares in 4 ways, for example, as 5555317156 + 62586029584 = 74534^2 + 250172^2 .
It is a junction number, because it is equal to n+sod(n) for n = 68141346691 and 68141346700.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46040711 + ... + 46042190.
It is an arithmetic number, because the mean of its divisors is an integer number (6123512983).
Almost surely, 268141346740 is an apocalyptic number.
It is an amenable number.
68141346740 is an abundant number, since it is smaller than the sum of its proper divisors (78822964852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68141346740 is a wasteful number, since it uses less digits than its factorization.
68141346740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92082947 (or 92082945 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 44.
The spelling of 68141346740 in words is "sixty-eight billion, one hundred forty-one million, three hundred forty-six thousand, seven hundred forty".
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