Base | Representation |
---|---|
bin | 100010011000… |
… | …1001001001110 |
3 | 1020220212111212 |
4 | 1010301021032 |
5 | 14103331321 |
6 | 1442214422 |
7 | 306141050 |
oct | 104611116 |
9 | 36825455 |
10 | 18027086 |
11 | a1a3020 |
12 | 6054412 |
13 | 397241c |
14 | 25738d0 |
15 | 18b155b |
hex | 113124e |
18027086 has 64 divisors (see below), whose sum is σ = 36426240. Its totient is φ = 6480000.
The previous prime is 18027059. The next prime is 18027169. The reversal of 18027086 is 68072081.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178436 + ... + 178536.
It is an arithmetic number, because the mean of its divisors is an integer number (569160).
Almost surely, 218027086 is an apocalyptic number.
18027086 is an abundant number, since it is smaller than the sum of its proper divisors (18399154).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18027086 is a wasteful number, since it uses less digits than its factorization.
18027086 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 201.
The product of its (nonzero) digits is 5376, while the sum is 32.
The square root of 18027086 is about 4245.8316028783. The cubic root of 18027086 is about 262.2055279864.
It can be divided in two parts, 1802 and 7086, that added together give a palindrome (8888).
The spelling of 18027086 in words is "eighteen million, twenty-seven thousand, eighty-six".
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