Base | Representation |
---|---|
bin | 1010101100100100… |
… | …0000111001000001 |
3 | 21102002210110200211 |
4 | 2223021000321001 |
5 | 21340021020011 |
6 | 1152525114121 |
7 | 131103236320 |
oct | 25311007101 |
9 | 7362713624 |
10 | 2871266881 |
11 | 124383433a |
12 | 6816b8941 |
13 | 369b205b2 |
14 | 1d34960b7 |
15 | 11c115b21 |
hex | ab240e41 |
2871266881 has 8 divisors (see below), whose sum is σ = 3286771200. Its totient is φ = 2457093408.
The previous prime is 2871266873. The next prime is 2871266917. The reversal of 2871266881 is 1886621782.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2871266881 - 23 = 2871266873 is a prime.
It is a super-2 number, since 2×28712668812 = 16488347003854936322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2871266861) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328081 + ... + 336718.
It is an arithmetic number, because the mean of its divisors is an integer number (410846400).
Almost surely, 22871266881 is an apocalyptic number.
It is an amenable number.
2871266881 is a deficient number, since it is larger than the sum of its proper divisors (415504319).
2871266881 is an equidigital number, since it uses as much as digits as its factorization.
2871266881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 665423.
The product of its digits is 516096, while the sum is 49.
The square root of 2871266881 is about 53584.2036518226. The cubic root of 2871266881 is about 1421.3177744323.
The spelling of 2871266881 in words is "two billion, eight hundred seventy-one million, two hundred sixty-six thousand, eight hundred eighty-one".
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