Base | Representation |
---|---|
bin | 111110101111110… |
… | …0000111001010101 |
3 | 12102201201001221212 |
4 | 1331133200321111 |
5 | 13302441210310 |
6 | 544530151205 |
7 | 103113500630 |
oct | 17537407125 |
9 | 5381631855 |
10 | 2105413205 |
11 | 9904a6115 |
12 | 4a9122505 |
13 | 277264a3c |
14 | 15d898c17 |
15 | c4c86205 |
hex | 7d7e0e55 |
2105413205 has 16 divisors (see below), whose sum is σ = 2980568064. Its totient is φ = 1397139840.
The previous prime is 2105413201. The next prime is 2105413241. The reversal of 2105413205 is 5023145012.
It is not a de Polignac number, because 2105413205 - 22 = 2105413201 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2105413201) by changing a digit.
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, 969152 + ... + 971321.
It is an arithmetic number, because the mean of its divisors is an integer number (186285504).
Almost surely, 22105413205 is an apocalyptic number.
It is an amenable number.
2105413205 is a deficient number, since it is larger than the sum of its proper divisors (875154859).
2105413205 is a wasteful number, since it uses less digits than its factorization.
2105413205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1940516.
The product of its (nonzero) digits is 1200, while the sum is 23.
The square root of 2105413205 is about 45884.7818454006. The cubic root of 2105413205 is about 1281.6785443173.
Adding to 2105413205 its reverse (5023145012), we get a palindrome (7128558217).
The spelling of 2105413205 in words is "two billion, one hundred five million, four hundred thirteen thousand, two hundred five".
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