Base | Representation |
---|---|
bin | 111110101111110… |
… | …0010000100010001 |
3 | 12102201201022112111 |
4 | 1331133202010101 |
5 | 13302441334001 |
6 | 544530225321 |
7 | 103113520621 |
oct | 17537420421 |
9 | 5381638474 |
10 | 2105418001 |
11 | 9904a9785 |
12 | 4a9125241 |
13 | 277266c8b |
14 | 15d89a881 |
15 | c4c87851 |
hex | 7d7e2111 |
2105418001 has 2 divisors, whose sum is σ = 2105418002. Its totient is φ = 2105418000.
The previous prime is 2105417971. The next prime is 2105418017. The reversal of 2105418001 is 1008145012.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1715947776 + 389470225 = 41424^2 + 19735^2 .
It is a cyclic number.
It is not a de Polignac number, because 2105418001 - 229 = 1568547089 is a prime.
It is not a weakly prime, because it can be changed into another prime (2105418031) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052709000 + 1052709001.
It is an arithmetic number, because the mean of its divisors is an integer number (1052709001).
Almost surely, 22105418001 is an apocalyptic number.
It is an amenable number.
2105418001 is a deficient number, since it is larger than the sum of its proper divisors (1).
2105418001 is an equidigital number, since it uses as much as digits as its factorization.
2105418001 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 320, while the sum is 22.
The square root of 2105418001 is about 45884.8341067068. The cubic root of 2105418001 is about 1281.6795175112.
The spelling of 2105418001 in words is "two billion, one hundred five million, four hundred eighteen thousand, one".
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