Base | Representation |
---|---|
bin | 1010101011110011… |
… | …0100010100110001 |
3 | 21101212210000222000 |
4 | 2222330310110301 |
5 | 21333211212211 |
6 | 1152332404213 |
7 | 131034122121 |
oct | 25274642461 |
9 | 7355700860 |
10 | 2868069681 |
11 | 1241a50224 |
12 | 680616669 |
13 | 369271269 |
14 | 1d2ca2c81 |
15 | 11bbd3656 |
hex | aaf34531 |
2868069681 has 8 divisors (see below), whose sum is σ = 4248992160. Its totient is φ = 1912046436.
The previous prime is 2868069671. The next prime is 2868069683. The reversal of 2868069681 is 1869608682.
It is a happy number.
2868069681 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 2868069681 - 25 = 2868069649 is a prime.
It is a super-2 number, since 2×28680696812 = 16451647390142883522, which contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (2868069683) 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, 53112375 + ... + 53112428.
It is an arithmetic number, because the mean of its divisors is an integer number (531124020).
Almost surely, 22868069681 is an apocalyptic number.
It is an amenable number.
2868069681 is a deficient number, since it is larger than the sum of its proper divisors (1380922479).
2868069681 is a wasteful number, since it uses less digits than its factorization.
2868069681 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106224812 (or 106224806 counting only the distinct ones).
The product of its (nonzero) digits is 1990656, while the sum is 54.
The square root of 2868069681 is about 53554.3619231898. The cubic root of 2868069681 is about 1420.7900254033.
The spelling of 2868069681 in words is "two billion, eight hundred sixty-eight million, sixty-nine thousand, six hundred eighty-one".
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