Base | Representation |
---|---|
bin | 1000011010010110011001 |
3 | 11011000210200 |
4 | 20122112121 |
5 | 1031030311 |
6 | 115132413 |
7 | 24512544 |
oct | 10322631 |
9 | 4130720 |
10 | 2205081 |
11 | 127678a |
12 | 8a4109 |
13 | 5c28a8 |
14 | 41585b |
15 | 2d8556 |
hex | 21a599 |
2205081 has 12 divisors (see below), whose sum is σ = 3198000. Its totient is φ = 1464120.
The previous prime is 2205067. The next prime is 2205107. The reversal of 2205081 is 1805022.
It is not a de Polignac number, because 2205081 - 26 = 2205017 is a prime.
It is a super-2 number, since 2×22050812 = 9724764433122, which contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (2205001) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4170 + ... + 4668.
It is an arithmetic number, because the mean of its divisors is an integer number (266500).
22205081 is an apocalyptic number.
It is an amenable number.
2205081 is a deficient number, since it is larger than the sum of its proper divisors (992919).
2205081 is a wasteful number, since it uses less digits than its factorization.
2205081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 996 (or 993 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 18.
The square root of 2205081 is about 1484.9515143600. The cubic root of 2205081 is about 130.1591935376.
The spelling of 2205081 in words is "two million, two hundred five thousand, eighty-one".
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