Base | Representation |
---|---|
bin | 111110101001101… |
… | …0011001011101111 |
3 | 12102111200101210012 |
4 | 1331103103023233 |
5 | 13301131230221 |
6 | 544333403435 |
7 | 103044333644 |
oct | 17523231357 |
9 | 5374611705 |
10 | 2102211311 |
11 | 989709522 |
12 | 4a803957b |
13 | 2766b3525 |
14 | 15d2a3dcb |
15 | c485265b |
hex | 7d4d32ef |
2102211311 has 2 divisors, whose sum is σ = 2102211312. Its totient is φ = 2102211310.
The previous prime is 2102211283. The next prime is 2102211323. The reversal of 2102211311 is 1131122012.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2102211311 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2102211011) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051105655 + 1051105656.
It is an arithmetic number, because the mean of its divisors is an integer number (1051105656).
Almost surely, 22102211311 is an apocalyptic number.
2102211311 is a deficient number, since it is larger than the sum of its proper divisors (1).
2102211311 is an equidigital number, since it uses as much as digits as its factorization.
2102211311 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 24, while the sum is 14.
The square root of 2102211311 is about 45849.8779823894. The cubic root of 2102211311 is about 1281.0284928324.
Adding to 2102211311 its reverse (1131122012), we get a palindrome (3233333323).
The spelling of 2102211311 in words is "two billion, one hundred two million, two hundred eleven thousand, three hundred eleven".
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