Base | Representation |
---|---|
bin | 10110100010110010… |
… | …10101001101011011 |
3 | 1011020110221202220120 |
4 | 23101121111031123 |
5 | 144241332410321 |
6 | 5320545324323 |
7 | 605631625542 |
oct | 132131251533 |
9 | 34213852816 |
10 | 12103013211 |
11 | 5150920a63 |
12 | 24193366a3 |
13 | 11ab5c19a3 |
14 | 82b595159 |
15 | 4ac81cec6 |
hex | 2d165535b |
12103013211 has 32 divisors (see below), whose sum is σ = 16916594688. Its totient is φ = 7688044320.
The previous prime is 12103013191. The next prime is 12103013227. The reversal of 12103013211 is 11231030121.
It is a happy number.
It is not a de Polignac number, because 12103013211 - 211 = 12103011163 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12103013291) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1658176 + ... + 1665458.
It is an arithmetic number, because the mean of its divisors is an integer number (528643584).
Almost surely, 212103013211 is an apocalyptic number.
12103013211 is a deficient number, since it is larger than the sum of its proper divisors (4813581477).
12103013211 is a wasteful number, since it uses less digits than its factorization.
12103013211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7591.
The product of its (nonzero) digits is 36, while the sum is 15.
Adding to 12103013211 its reverse (11231030121), we get a palindrome (23334043332).
The spelling of 12103013211 in words is "twelve billion, one hundred three million, thirteen thousand, two hundred eleven".
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