Base | Representation |
---|---|
bin | 10100000001110… |
… | …10000100100010 |
3 | 102201010210102021 |
4 | 22000322010202 |
5 | 321002310033 |
6 | 24401012054 |
7 | 4110030061 |
oct | 1200720442 |
9 | 381123367 |
10 | 168010018 |
11 | 86923460 |
12 | 4832402a |
13 | 28a66617 |
14 | 184561d8 |
15 | eb3ab2d |
hex | a03a122 |
168010018 has 16 divisors (see below), whose sum is σ = 283795200. Its totient is φ = 73904400.
The previous prime is 168010013. The next prime is 168010033. The reversal of 168010018 is 810010861.
It is a happy number.
It is a super-2 number, since 2×1680100182 = 56454732296720648, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 168009974 and 168010001.
It is not an unprimeable number, because it can be changed into a prime (168010013) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122493 + ... + 123856.
It is an arithmetic number, because the mean of its divisors is an integer number (17737200).
Almost surely, 2168010018 is an apocalyptic number.
168010018 is a deficient number, since it is larger than the sum of its proper divisors (115785182).
168010018 is a wasteful number, since it uses less digits than its factorization.
168010018 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 246393.
The product of its (nonzero) digits is 384, while the sum is 25.
The square root of 168010018 is about 12961.8678437947. The cubic root of 168010018 is about 551.7958028766.
Adding to 168010018 its reverse (810010861), we get a palindrome (978020879).
The spelling of 168010018 in words is "one hundred sixty-eight million, ten thousand, eighteen".
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