Base | Representation |
---|---|
bin | 1100111010010111101110… |
… | …00100110001011100001110 |
3 | 10201112102120020202210121221 |
4 | 12131023313010301130032 |
5 | 12210201131014044443 |
6 | 140215545025113554 |
7 | 5660250535514650 |
oct | 635136704613416 |
9 | 121472506683557 |
10 | 28393879049998 |
11 | 905785a551300 |
12 | 3226b107888ba |
13 | 12ac6ba380007 |
14 | 7023b1ba86d0 |
15 | 3438cb169eed |
hex | 19d2f713170e |
28393879049998 has 192 divisors, whose sum is σ = 58220707184640. Its totient is φ = 10127312712000.
The previous prime is 28393879049983. The next prime is 28393879050007. The reversal of 28393879049998 is 89994097839382.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 689435715 + ... + 689476897.
It is an arithmetic number, because the mean of its divisors is an integer number (303232849920).
Almost surely, 228393879049998 is an apocalyptic number.
28393879049998 is an abundant number, since it is smaller than the sum of its proper divisors (29826828134642).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28393879049998 is a wasteful number, since it uses less digits than its factorization.
28393879049998 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41955 (or 41944 counting only the distinct ones).
The product of its (nonzero) digits is 15237476352, while the sum is 88.
The spelling of 28393879049998 in words is "twenty-eight trillion, three hundred ninety-three billion, eight hundred seventy-nine million, forty-nine thousand, nine hundred ninety-eight".
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