Base | Representation |
---|---|
bin | 1000001100110… |
… | …11110110001111 |
3 | 11210110012002021 |
4 | 10012123312033 |
5 | 120102431131 |
6 | 10454311011 |
7 | 1463516551 |
oct | 406336617 |
9 | 153405067 |
10 | 68795791 |
11 | 35919329 |
12 | 1b058467 |
13 | 1133968c |
14 | 91cb4d1 |
15 | 608de11 |
hex | 419bd8f |
68795791 has 2 divisors, whose sum is σ = 68795792. Its totient is φ = 68795790.
The previous prime is 68795777. The next prime is 68795809. The reversal of 68795791 is 19759786.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 68795791 - 25 = 68795759 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68795731) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34397895 + 34397896.
It is an arithmetic number, because the mean of its divisors is an integer number (34397896).
Almost surely, 268795791 is an apocalyptic number.
68795791 is a deficient number, since it is larger than the sum of its proper divisors (1).
68795791 is an equidigital number, since it uses as much as digits as its factorization.
68795791 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 952560, while the sum is 52.
The square root of 68795791 is about 8294.3228174457. The cubic root of 68795791 is about 409.7515667278.
The spelling of 68795791 in words is "sixty-eight million, seven hundred ninety-five thousand, seven hundred ninety-one".
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