Base | Representation |
---|---|
bin | 1001110011110010010… |
… | …1000011001110110100 |
3 | 121002222110020112220121 |
4 | 2130330211003032310 |
5 | 10230112114220233 |
6 | 205230025541324 |
7 | 15114040650430 |
oct | 2347445031664 |
9 | 532873215817 |
10 | 168520070068 |
11 | 65518205989 |
12 | 287b1044844 |
13 | 12b784710bc |
14 | 82292b99c0 |
15 | 45b496792d |
hex | 273c9433b4 |
168520070068 has 24 divisors (see below), whose sum is σ = 354779096000. Its totient is φ = 68421682368.
The previous prime is 168520070063. The next prime is 168520070227. The reversal of 168520070068 is 860070025861.
168520070068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (168520070063) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158382993 + ... + 158384056.
Almost surely, 2168520070068 is an apocalyptic number.
It is an amenable number.
168520070068 is an abundant number, since it is smaller than the sum of its proper divisors (186259025932).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
168520070068 is a wasteful number, since it uses less digits than its factorization.
168520070068 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 316767079 (or 316767077 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 43.
The spelling of 168520070068 in words is "one hundred sixty-eight billion, five hundred twenty million, seventy thousand, sixty-eight".
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