Base | Representation |
---|---|
bin | 111110111010110… |
… | …0101111110111100 |
3 | 12110010121010121111 |
4 | 1331311211332330 |
5 | 13310431414322 |
6 | 545254211404 |
7 | 103213625401 |
oct | 17565457674 |
9 | 5403533544 |
10 | 2111201212 |
11 | 99379979a |
12 | 4ab053b64 |
13 | 2785103b3 |
14 | 1605642a8 |
15 | c552b177 |
hex | 7dd65fbc |
2111201212 has 12 divisors (see below), whose sum is σ = 3694967416. Its totient is φ = 1055496240.
The previous prime is 2111201201. The next prime is 2111201243. The reversal of 2111201212 is 2121021112.
It is a junction number, because it is equal to n+sod(n) for n = 2111201192 and 2111201201.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35662 + ... + 74122.
Almost surely, 22111201212 is an apocalyptic number.
It is an amenable number.
2111201212 is a deficient number, since it is larger than the sum of its proper divisors (1583766204).
2111201212 is a wasteful number, since it uses less digits than its factorization.
2111201212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52188 (or 52186 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 13.
The square root of 2111201212 is about 45947.8096539977. The cubic root of 2111201212 is about 1282.8519603435.
Adding to 2111201212 its reverse (2121021112), we get a palindrome (4232222324).
The spelling of 2111201212 in words is "two billion, one hundred eleven million, two hundred one thousand, two hundred twelve".
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