Base | Representation |
---|---|
bin | 100010010110… |
… | …0000001011011 |
3 | 1020212210201212 |
4 | 1010230001123 |
5 | 14102143412 |
6 | 1441533335 |
7 | 306022640 |
oct | 104540133 |
9 | 36783655 |
10 | 18006107 |
11 | a189289 |
12 | 604424b |
13 | 3965a02 |
14 | 2569dc7 |
15 | 18aa222 |
hex | 112c05b |
18006107 has 16 divisors (see below), whose sum is σ = 21084672. Its totient is φ = 15059520.
The previous prime is 18006073. The next prime is 18006113. The reversal of 18006107 is 70160081.
It is not a de Polignac number, because 18006107 - 220 = 16957531 is a prime.
It is not an unprimeable number, because it can be changed into a prime (18006127) 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, 85232 + ... + 85442.
It is an arithmetic number, because the mean of its divisors is an integer number (1317792).
Almost surely, 218006107 is an apocalyptic number.
18006107 is a deficient number, since it is larger than the sum of its proper divisors (3078565).
18006107 is a wasteful number, since it uses less digits than its factorization.
18006107 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 458.
The product of its (nonzero) digits is 336, while the sum is 23.
The square root of 18006107 is about 4243.3603429358. The cubic root of 18006107 is about 262.1037747135.
Adding to 18006107 its reverse (70160081), we get a palindrome (88166188).
The spelling of 18006107 in words is "eighteen million, six thousand, one hundred seven".
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