Base | Representation |
---|---|
bin | 1010101100100000… |
… | …0101000110110101 |
3 | 21102002100000210100 |
4 | 2223020011012311 |
5 | 21334440201010 |
6 | 1152515544313 |
7 | 131101166355 |
oct | 25310050665 |
9 | 7362300710 |
10 | 2871022005 |
11 | 1243687365 |
12 | 6815bb099 |
13 | 369a65cb7 |
14 | 1d3430b65 |
15 | 11c0b82c0 |
hex | ab2051b5 |
2871022005 has 48 divisors (see below), whose sum is σ = 5065495344. Its totient is φ = 1504051200.
The previous prime is 2871021983. The next prime is 2871022013. The reversal of 2871022005 is 5002201782.
It can be written as a sum of positive squares in 8 ways, for example, as 527076 + 2870494929 = 726^2 + 53577^2 .
It is not a de Polignac number, because 2871022005 - 25 = 2871021973 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 2871022005.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 595605 + ... + 600405.
It is an arithmetic number, because the mean of its divisors is an integer number (105531153).
Almost surely, 22871022005 is an apocalyptic number.
It is an amenable number.
2871022005 is a deficient number, since it is larger than the sum of its proper divisors (2194473339).
2871022005 is a wasteful number, since it uses less digits than its factorization.
2871022005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5046 (or 5043 counting only the distinct ones).
The product of its (nonzero) digits is 2240, while the sum is 27.
The square root of 2871022005 is about 53581.9186386602. The cubic root of 2871022005 is about 1421.2773675875.
Adding to 2871022005 its reverse (5002201782), we get a palindrome (7873223787).
The spelling of 2871022005 in words is "two billion, eight hundred seventy-one million, twenty-two thousand, five".
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