Base | Representation |
---|---|
bin | 10010101010000010100… |
… | …10111110010100100000 |
3 | 2021021122120102120222101 |
4 | 21111001102332110200 |
5 | 41000330134320000 |
6 | 1210254200220144 |
7 | 64212464602432 |
oct | 11250122762440 |
9 | 2237576376871 |
10 | 641045620000 |
11 | 2279585a43a5 |
12 | a42a4a6a654 |
13 | 485b1530816 |
14 | 23053676652 |
15 | 11a1d547e6a |
hex | 95414be520 |
641045620000 has 120 divisors (see below), whose sum is σ = 1603801306800. Its totient is φ = 252071712000.
The previous prime is 641045619959. The next prime is 641045620091. The reversal of 641045620000 is 26540146.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 908371 + ... + 1451629.
It is an arithmetic number, because the mean of its divisors is an integer number (13365010890).
Almost surely, 2641045620000 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 641045620000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801900653400).
641045620000 is an abundant number, since it is smaller than the sum of its proper divisors (962755686800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
641045620000 is an equidigital number, since it uses as much as digits as its factorization.
641045620000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 543348 (or 543325 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 28.
The spelling of 641045620000 in words is "six hundred forty-one billion, forty-five million, six hundred twenty thousand".
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