Base | Representation |
---|---|
bin | 1001101010000000100100… |
… | …11111110100110111011000 |
3 | 2210012000021210002000100010 |
4 | 10311000102133310313120 |
5 | 10240402004413104222 |
6 | 113055015334441520 |
7 | 4321102615240416 |
oct | 465002237646730 |
9 | 83160253060303 |
10 | 21234628644312 |
11 | 6847612314136 |
12 | 246b4b62032a0 |
13 | bb0555b9ca05 |
14 | 535a938262b6 |
15 | 26c564bea80c |
hex | 1350127f4dd8 |
21234628644312 has 32 divisors (see below), whose sum is σ = 53404455283200. Its totient is φ = 7035825058464.
The previous prime is 21234628644287. The next prime is 21234628644377. The reversal of 21234628644312 is 21344682643212.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2649026512 + ... + 2649034527.
It is an arithmetic number, because the mean of its divisors is an integer number (1668889227600).
Almost surely, 221234628644312 is an apocalyptic number.
It is an amenable number.
21234628644312 is an abundant number, since it is smaller than the sum of its proper divisors (32169826638888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21234628644312 is a wasteful number, since it uses less digits than its factorization.
21234628644312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5298061215 (or 5298061211 counting only the distinct ones).
The product of its digits is 2654208, while the sum is 48.
The spelling of 21234628644312 in words is "twenty-one trillion, two hundred thirty-four billion, six hundred twenty-eight million, six hundred forty-four thousand, three hundred twelve".
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