Base | Representation |
---|---|
bin | 111110101111100… |
… | …1111110110000101 |
3 | 12102201120112011012 |
4 | 1331133033312011 |
5 | 13302431441430 |
6 | 544524452005 |
7 | 103113060206 |
oct | 17537176605 |
9 | 5381515135 |
10 | 2105343365 |
11 | 9904586a4 |
12 | 4a90aa005 |
13 | 27723c008 |
14 | 15d87b5ad |
15 | c4c70695 |
hex | 7d7cfd85 |
2105343365 has 4 divisors (see below), whose sum is σ = 2526412044. Its totient is φ = 1684274688.
The previous prime is 2105343349. The next prime is 2105343367. The reversal of 2105343365 is 5633435012.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 1199513956 + 905829409 = 34634^2 + 30097^2 .
It is a cyclic number.
It is not a de Polignac number, because 2105343365 - 24 = 2105343349 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 (2105343367) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210534332 + ... + 210534341.
It is an arithmetic number, because the mean of its divisors is an integer number (631603011).
Almost surely, 22105343365 is an apocalyptic number.
It is an amenable number.
2105343365 is a deficient number, since it is larger than the sum of its proper divisors (421068679).
2105343365 is an equidigital number, since it uses as much as digits as its factorization.
2105343365 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 421068678.
The product of its (nonzero) digits is 32400, while the sum is 32.
The square root of 2105343365 is about 45884.0208024537. The cubic root of 2105343365 is about 1281.6643723693.
Adding to 2105343365 its reverse (5633435012), we get a palindrome (7738778377).
The spelling of 2105343365 in words is "two billion, one hundred five million, three hundred forty-three thousand, three hundred sixty-five".
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