Base | Representation |
---|---|
bin | 111110101111110… |
… | …0011000100111101 |
3 | 12102201201112012211 |
4 | 1331133203010331 |
5 | 13302442002031 |
6 | 544530300421 |
7 | 103113535654 |
oct | 17537430475 |
9 | 5381645184 |
10 | 2105422141 |
11 | 9905018a9 |
12 | 4a9127711 |
13 | 277268b24 |
14 | 15d89c19b |
15 | c4c88bb1 |
hex | 7d7e313d |
2105422141 has 2 divisors, whose sum is σ = 2105422142. Its totient is φ = 2105422140.
The previous prime is 2105422117. The next prime is 2105422157. The reversal of 2105422141 is 1412245012.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1054300900 + 1051121241 = 32470^2 + 32421^2 .
It is a cyclic number.
It is not a de Polignac number, because 2105422141 - 219 = 2104897853 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2105422841) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052711070 + 1052711071.
It is an arithmetic number, because the mean of its divisors is an integer number (1052711071).
Almost surely, 22105422141 is an apocalyptic number.
It is an amenable number.
2105422141 is a deficient number, since it is larger than the sum of its proper divisors (1).
2105422141 is an equidigital number, since it uses as much as digits as its factorization.
2105422141 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 640, while the sum is 22.
The square root of 2105422141 is about 45884.8792196296. The cubic root of 2105422141 is about 1281.6803575897.
Adding to 2105422141 its reverse (1412245012), we get a palindrome (3517667153).
The spelling of 2105422141 in words is "two billion, one hundred five million, four hundred twenty-two thousand, one hundred forty-one".
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