Base | Representation |
---|---|
bin | 101111001000010110… |
… | …1100001110101111100 |
3 | 100200020122102111121211 |
4 | 1132100231201311330 |
5 | 3124240244231022 |
6 | 114255102334204 |
7 | 10212062446420 |
oct | 1362055416574 |
9 | 320218374554 |
10 | 101212102012 |
11 | 39a186582aa |
12 | 1774788a364 |
13 | 970c980478 |
14 | 4c82020b80 |
15 | 2975865e77 |
hex | 1790b61d7c |
101212102012 has 12 divisors (see below), whose sum is σ = 202424204080. Its totient is φ = 43376615136.
The previous prime is 101212101941. The next prime is 101212102049. The reversal of 101212102012 is 210201212101.
101212102012 is an admirable number.
It is a junction number, because it is equal to n+sod(n) for n = 101212101983 and 101212102001.
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, 1807358937 + ... + 1807358992.
Almost surely, 2101212102012 is an apocalyptic number.
It is an amenable number.
101212102012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
101212102012 is a wasteful number, since it uses less digits than its factorization.
101212102012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3614717940 (or 3614717938 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 101212102012 its reverse (210201212101), we get a palindrome (311413314113).
The spelling of 101212102012 in words is "one hundred one billion, two hundred twelve million, one hundred two thousand, twelve".
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