Base | Representation |
---|---|
bin | 110010011001… |
… | …000110100010 |
3 | 220212010201221 |
4 | 302121012202 |
5 | 11340210033 |
6 | 1151045254 |
7 | 220166113 |
oct | 62310642 |
9 | 26763657 |
10 | 13210018 |
11 | 7502978 |
12 | 451082a |
13 | 29769a3 |
14 | 1a7c20a |
15 | 125e12d |
hex | c991a2 |
13210018 has 8 divisors (see below), whose sum is σ = 19915200. Its totient is φ = 6571620.
The previous prime is 13210013. The next prime is 13210033. The reversal of 13210018 is 81001231.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 13209983 and 13210010.
It is not an unprimeable number, because it can be changed into a prime (13210013) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16198 + ... + 16993.
It is an arithmetic number, because the mean of its divisors is an integer number (2489400).
Almost surely, 213210018 is an apocalyptic number.
13210018 is a deficient number, since it is larger than the sum of its proper divisors (6705182).
13210018 is a wasteful number, since it uses less digits than its factorization.
13210018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33392.
The product of its (nonzero) digits is 48, while the sum is 16.
The square root of 13210018 is about 3634.5588453071. The cubic root of 13210018 is about 236.3929224874.
Adding to 13210018 its reverse (81001231), we get a palindrome (94211249).
The spelling of 13210018 in words is "thirteen million, two hundred ten thousand, eighteen".
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