Base | Representation |
---|---|
bin | 111110101111111… |
… | …1110111111010101 |
3 | 12102201221100001012 |
4 | 1331133332333111 |
5 | 13303004131334 |
6 | 544532542005 |
7 | 103114523201 |
oct | 17537767725 |
9 | 5381840035 |
10 | 2105536469 |
11 | 99057a793 |
12 | 4a9181905 |
13 | 2772a8b8a |
14 | 15d8cbb01 |
15 | c4cac9ce |
hex | 7d7fefd5 |
2105536469 has 2 divisors, whose sum is σ = 2105536470. Its totient is φ = 2105536468.
The previous prime is 2105536379. The next prime is 2105536487. The reversal of 2105536469 is 9646355012.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1991836900 + 113699569 = 44630^2 + 10663^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2105536469 is a prime.
It is a super-2 number, since 2×21055364692 = 8866567644577975922, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2105538469) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052768234 + 1052768235.
It is an arithmetic number, because the mean of its divisors is an integer number (1052768235).
Almost surely, 22105536469 is an apocalyptic number.
It is an amenable number.
2105536469 is a deficient number, since it is larger than the sum of its proper divisors (1).
2105536469 is an equidigital number, since it uses as much as digits as its factorization.
2105536469 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 194400, while the sum is 41.
The square root of 2105536469 is about 45886.1250161746. The cubic root of 2105536469 is about 1281.7035563103.
The spelling of 2105536469 in words is "two billion, one hundred five million, five hundred thirty-six thousand, four hundred sixty-nine".
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