Base | Representation |
---|---|
bin | 111111100111100111… |
… | …011100011100110110 |
3 | 20112022200001011212022 |
4 | 333213213130130312 |
5 | 2104344424331421 |
6 | 51214212353142 |
7 | 4635536463506 |
oct | 774747343466 |
9 | 215280034768 |
10 | 68310386486 |
11 | 26a74483471 |
12 | 112a50157b2 |
13 | 6598396844 |
14 | 3440475a06 |
15 | 1b9c10e7ab |
hex | fe79dc736 |
68310386486 has 4 divisors (see below), whose sum is σ = 102465579732. Its totient is φ = 34155193242.
The previous prime is 68310386483. The next prime is 68310386503. The reversal of 68310386486 is 68468301386.
It is a semiprime because it is the product of two primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68310386483) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17077596620 + ... + 17077596623.
It is an arithmetic number, because the mean of its divisors is an integer number (25616394933).
Almost surely, 268310386486 is an apocalyptic number.
68310386486 is a deficient number, since it is larger than the sum of its proper divisors (34155193246).
68310386486 is a wasteful number, since it uses less digits than its factorization.
68310386486 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34155193245.
The product of its (nonzero) digits is 3981312, while the sum is 53.
The spelling of 68310386486 in words is "sixty-eight billion, three hundred ten million, three hundred eighty-six thousand, four hundred eighty-six".
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