Base | Representation |
---|---|
bin | 10111100001000010011… |
… | …01101010010101111001 |
3 | 2212020121200101211021100 |
4 | 23300201031222111321 |
5 | 101214301314043311 |
6 | 1415110053402013 |
7 | 112243160603361 |
oct | 13604115522571 |
9 | 2766550354240 |
10 | 808011081081 |
11 | 291748210566 |
12 | 110721339309 |
13 | 5b26c89c439 |
14 | 2b1722b59a1 |
15 | 1604177aa56 |
hex | bc2136a579 |
808011081081 has 24 divisors (see below), whose sum is σ = 1235816805600. Its totient is φ = 506972923776.
The previous prime is 808011080941. The next prime is 808011081113. The reversal of 808011081081 is 180180110808.
808011081081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 808011081081 - 237 = 670572127609 is a prime.
It is a super-2 number, since 2×8080110810812 (a number of 25 digits) contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (808011081281) 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, 8539770 + ... + 8633868.
It is an arithmetic number, because the mean of its divisors is an integer number (51492366900).
Almost surely, 2808011081081 is an apocalyptic number.
It is an amenable number.
808011081081 is a deficient number, since it is larger than the sum of its proper divisors (427805724519).
808011081081 is a wasteful number, since it uses less digits than its factorization.
808011081081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 150245 (or 150242 counting only the distinct ones).
The product of its (nonzero) digits is 4096, while the sum is 36.
Adding to 808011081081 its reverse (180180110808), we get a palindrome (988191191889).
The spelling of 808011081081 in words is "eight hundred eight billion, eleven million, eighty-one thousand, eighty-one".
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