Base | Representation |
---|---|
bin | 111110101111000… |
… | …1001001110100011 |
3 | 12102201000211101020 |
4 | 1331132021032203 |
5 | 13302343212430 |
6 | 544514340523 |
7 | 103110444003 |
oct | 17536111643 |
9 | 5381024336 |
10 | 2105054115 |
11 | 99028034a |
12 | 4a8b8a743 |
13 | 27716a468 |
14 | 15d804003 |
15 | c4c14b10 |
hex | 7d7893a3 |
2105054115 has 16 divisors (see below), whose sum is σ = 3375129600. Its totient is φ = 1120347872.
The previous prime is 2105054113. The next prime is 2105054153. The reversal of 2105054115 is 5114505012.
It is a cyclic number.
It is not a de Polignac number, because 2105054115 - 21 = 2105054113 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2105054113) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139305 + ... + 153674.
It is an arithmetic number, because the mean of its divisors is an integer number (210945600).
Almost surely, 22105054115 is an apocalyptic number.
2105054115 is a deficient number, since it is larger than the sum of its proper divisors (1270075485).
2105054115 is a wasteful number, since it uses less digits than its factorization.
2105054115 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 293466.
The product of its (nonzero) digits is 1000, while the sum is 24.
The square root of 2105054115 is about 45880.8687254285. The cubic root of 2105054115 is about 1281.6056743592.
Adding to 2105054115 its reverse (5114505012), we get a palindrome (7219559127).
The spelling of 2105054115 in words is "two billion, one hundred five million, fifty-four thousand, one hundred fifteen".
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