Base | Representation |
---|---|
bin | 111110111100101… |
… | …1010000111110101 |
3 | 12110012110221100021 |
4 | 1331321122013311 |
5 | 13311210414310 |
6 | 545331445141 |
7 | 103225262002 |
oct | 17571320765 |
9 | 5405427307 |
10 | 2112201205 |
11 | 994312034 |
12 | 4ab4567b1 |
13 | 2787a05ca |
14 | 1607448a9 |
15 | c56775da |
hex | 7de5a1f5 |
2112201205 has 16 divisors (see below), whose sum is σ = 2651186304. Its totient is φ = 1612416960.
The previous prime is 2112201187. The next prime is 2112201211. The reversal of 2112201205 is 5021022112.
It is a happy number.
It is not a de Polignac number, because 2112201205 - 29 = 2112200693 is a prime.
It is a super-3 number, since 3×21122012053 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26602 + ... + 70228.
It is an arithmetic number, because the mean of its divisors is an integer number (165699144).
Almost surely, 22112201205 is an apocalyptic number.
It is an amenable number.
2112201205 is a deficient number, since it is larger than the sum of its proper divisors (538985099).
2112201205 is a wasteful number, since it uses less digits than its factorization.
2112201205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 44076.
The product of its (nonzero) digits is 80, while the sum is 16.
The square root of 2112201205 is about 45958.6902010925. The cubic root of 2112201205 is about 1283.0544738829.
Adding to 2112201205 its reverse (5021022112), we get a palindrome (7133223317).
The spelling of 2112201205 in words is "two billion, one hundred twelve million, two hundred one thousand, two hundred five".
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