Base | Representation |
---|---|
bin | 111110101111100… |
… | …0101110001100011 |
3 | 12102201111102120102 |
4 | 1331133011301203 |
5 | 13302424131430 |
6 | 544523533015 |
7 | 103112526020 |
oct | 17537056143 |
9 | 5381442512 |
10 | 2105302115 |
11 | 99042a704 |
12 | 4a908a16b |
13 | 2772262c7 |
14 | 15d86a547 |
15 | c4c63345 |
hex | 7d7c5c63 |
2105302115 has 16 divisors (see below), whose sum is σ = 2926826688. Its totient is φ = 1423858176.
The previous prime is 2105302099. The next prime is 2105302139. The reversal of 2105302115 is 5112035012.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 2105302115 - 24 = 2105302099 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409442 + ... + 414551.
It is an arithmetic number, because the mean of its divisors is an integer number (182926668).
Almost surely, 22105302115 is an apocalyptic number.
2105302115 is a deficient number, since it is larger than the sum of its proper divisors (821524573).
2105302115 is an equidigital number, since it uses as much as digits as its factorization.
2105302115 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 824078.
The product of its (nonzero) digits is 300, while the sum is 20.
The square root of 2105302115 is about 45883.5712973609. The cubic root of 2105302115 is about 1281.6560017631.
Adding to 2105302115 its reverse (5112035012), we get a palindrome (7217337127).
The spelling of 2105302115 in words is "two billion, one hundred five million, three hundred two thousand, one hundred fifteen".
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