Base | Representation |
---|---|
bin | 10111101111001011… |
… | …10010111010010101 |
3 | 1012220010201212102221 |
4 | 23313211302322111 |
5 | 202044404033210 |
6 | 5504320102341 |
7 | 630542432011 |
oct | 136745627225 |
9 | 35803655387 |
10 | 12743814805 |
11 | 544a607757 |
12 | 2577a649b1 |
13 | 12812a4c27 |
14 | 88c71d541 |
15 | 4e8bea1da |
hex | 2f7972e95 |
12743814805 has 24 divisors (see below), whose sum is σ = 17100096480. Its totient is φ = 9090305280.
The previous prime is 12743814803. The next prime is 12743814857. The reversal of 12743814805 is 50841834721.
It is not a de Polignac number, because 12743814805 - 21 = 12743814803 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12743814803) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204631 + ... + 259540.
It is an arithmetic number, because the mean of its divisors is an integer number (712504020).
Almost surely, 212743814805 is an apocalyptic number.
It is an amenable number.
12743814805 is a deficient number, since it is larger than the sum of its proper divisors (4356281675).
12743814805 is a wasteful number, since it uses less digits than its factorization.
12743814805 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 464229 (or 464212 counting only the distinct ones).
The product of its (nonzero) digits is 215040, while the sum is 43.
The spelling of 12743814805 in words is "twelve billion, seven hundred forty-three million, eight hundred fourteen thousand, eight hundred five".
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