Base | Representation |
---|---|
bin | 10100000011000… |
… | …00101001010001 |
3 | 102201102211011002 |
4 | 22001200221101 |
5 | 321022334032 |
6 | 24404231345 |
7 | 4111255523 |
oct | 1201405121 |
9 | 381384132 |
10 | 168168017 |
11 | 86a21136 |
12 | 4839b555 |
13 | 28ac0504 |
14 | 18497a13 |
15 | eb6c862 |
hex | a060a51 |
168168017 has 2 divisors, whose sum is σ = 168168018. Its totient is φ = 168168016.
The previous prime is 168167999. The next prime is 168168037. The reversal of 168168017 is 710861861.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 92756161 + 75411856 = 9631^2 + 8684^2 .
It is an emirp because it is prime and its reverse (710861861) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 168168017 - 28 = 168167761 is a prime.
It is not a weakly prime, because it can be changed into another prime (168168037) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84084008 + 84084009.
It is an arithmetic number, because the mean of its divisors is an integer number (84084009).
Almost surely, 2168168017 is an apocalyptic number.
It is an amenable number.
168168017 is a deficient number, since it is larger than the sum of its proper divisors (1).
168168017 is an equidigital number, since it uses as much as digits as its factorization.
168168017 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 16128, while the sum is 38.
The square root of 168168017 is about 12967.9611736001. The cubic root of 168168017 is about 551.9687208787.
The spelling of 168168017 in words is "one hundred sixty-eight million, one hundred sixty-eight thousand, seventeen".
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