Base | Representation |
---|---|
bin | 100110011001000000001110… |
… | …010101100100011111101000 |
3 | 211010211022212022100110002021 |
4 | 212121000032111210133220 |
5 | 134112320000142012010 |
6 | 1355033505504314224 |
7 | 50364401410315432 |
oct | 4631001625443750 |
9 | 733738768313067 |
10 | 168843994875880 |
11 | 49887377398665 |
12 | 16b2b120312974 |
13 | 7329bc716378c |
14 | 2d9a1430d9652 |
15 | 147c046b738da |
hex | 99900e5647e8 |
168843994875880 has 64 divisors (see below), whose sum is σ = 380631735792000. Its totient is φ = 67407415966464.
The previous prime is 168843994875781. The next prime is 168843994875883. The reversal of 168843994875880 is 88578499348861.
168843994875880 is digitally balanced in base 3, 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 = 168843994875791 and 168843994875800.
It is not an unprimeable number, because it can be changed into a prime (168843994875883) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62925141 + ... + 65553499.
It is an arithmetic number, because the mean of its divisors is an integer number (5947370871750).
Almost surely, 2168843994875880 is an apocalyptic number.
168843994875880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
168843994875880 is an abundant number, since it is smaller than the sum of its proper divisors (211787740916120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
168843994875880 is a wasteful number, since it uses less digits than its factorization.
168843994875880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2631466 (or 2631462 counting only the distinct ones).
The product of its (nonzero) digits is 26754416640, while the sum is 88.
The spelling of 168843994875880 in words is "one hundred sixty-eight trillion, eight hundred forty-three billion, nine hundred ninety-four million, eight hundred seventy-five thousand, eight hundred eighty".
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