Base | Representation |
---|---|
bin | 11101001111000001110010… |
… | …00111001011001111000100 |
3 | 22102121212122020211121120222 |
4 | 32213200321013023033010 |
5 | 31411243340314400433 |
6 | 344421302422243512 |
7 | 16353441165303164 |
oct | 1647407107131704 |
9 | 272555566747528 |
10 | 64288028668868 |
11 | 1953644421a784 |
12 | 726354a886598 |
13 | 29b444826b124 |
14 | 11c37b2d005a4 |
15 | 76742c260b98 |
hex | 3a78391cb3c4 |
64288028668868 has 12 divisors (see below), whose sum is σ = 112508437670160. Its totient is φ = 32142760763112.
The previous prime is 64288028668781. The next prime is 64288028668901. The reversal of 64288028668868 is 86886682088246.
64288028668868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 64288028668792 and 64288028668801.
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 3 ways as a sum of consecutive naturals, for example, 313277438 + ... + 313482581.
It is an arithmetic number, because the mean of its divisors is an integer number (9375703139180).
Almost surely, 264288028668868 is an apocalyptic number.
It is an amenable number.
64288028668868 is a deficient number, since it is larger than the sum of its proper divisors (48220409001292).
64288028668868 is a wasteful number, since it uses less digits than its factorization.
64288028668868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 626785666 (or 626785664 counting only the distinct ones).
The product of its (nonzero) digits is 5435817984, while the sum is 80.
The spelling of 64288028668868 in words is "sixty-four trillion, two hundred eighty-eight billion, twenty-eight million, six hundred sixty-eight thousand, eight hundred sixty-eight".
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