Base | Representation |
---|---|
bin | 111110101111111… |
… | …1101100011101001 |
3 | 12102201221000222212 |
4 | 1331133331203221 |
5 | 13303003434401 |
6 | 544532454505 |
7 | 103114500116 |
oct | 17537754351 |
9 | 5381830885 |
10 | 2105530601 |
11 | 990576339 |
12 | 4a917a435 |
13 | 2772a62c5 |
14 | 15d8c990d |
15 | c4caadbb |
hex | 7d7fd8e9 |
2105530601 has 2 divisors, whose sum is σ = 2105530602. Its totient is φ = 2105530600.
The previous prime is 2105530591. The next prime is 2105530649. The reversal of 2105530601 is 1060355012.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1958151001 + 147379600 = 44251^2 + 12140^2 .
It is a cyclic number.
It is not a de Polignac number, because 2105530601 - 222 = 2101336297 is a prime.
It is a super-2 number, since 2×21055306012 = 8866518223494842402, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2105530901) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052765300 + 1052765301.
It is an arithmetic number, because the mean of its divisors is an integer number (1052765301).
Almost surely, 22105530601 is an apocalyptic number.
It is an amenable number.
2105530601 is a deficient number, since it is larger than the sum of its proper divisors (1).
2105530601 is an equidigital number, since it uses as much as digits as its factorization.
2105530601 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 900, while the sum is 23.
The square root of 2105530601 is about 45886.0610752329. The cubic root of 2105530601 is about 1281.7023656330.
Adding to 2105530601 its reverse (1060355012), we get a palindrome (3165885613).
The spelling of 2105530601 in words is "two billion, one hundred five million, five hundred thirty thousand, six hundred one".
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