Base | Representation |
---|---|
bin | 1010000000101010… |
… | …1100101001000111 |
3 | 20221021100210222001 |
4 | 2200022230221013 |
5 | 21000403040410 |
6 | 1122351050131 |
7 | 123406321243 |
oct | 24012545107 |
9 | 6837323861 |
10 | 2687158855 |
11 | 1159916247 |
12 | 62bb10947 |
13 | 33a93b934 |
14 | 1b6c4d423 |
15 | 10ad9a33a |
hex | a02aca47 |
2687158855 has 16 divisors (see below), whose sum is σ = 3313514880. Its totient is φ = 2090506752.
The previous prime is 2687158843. The next prime is 2687158861. The reversal of 2687158855 is 5588517862.
It is a cyclic number.
It is not a de Polignac number, because 2687158855 - 25 = 2687158823 is a prime.
It is a super-2 number, since 2×26871588552 = 14441645424009822050, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2687158796 and 2687158805.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574687 + ... + 579343.
It is an arithmetic number, because the mean of its divisors is an integer number (207094680).
Almost surely, 22687158855 is an apocalyptic number.
2687158855 is a deficient number, since it is larger than the sum of its proper divisors (626356025).
2687158855 is a wasteful number, since it uses less digits than its factorization.
2687158855 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7818.
The product of its digits is 5376000, while the sum is 55.
The square root of 2687158855 is about 51837.8129843457. The cubic root of 2687158855 is about 1390.2656109572.
The spelling of 2687158855 in words is "two billion, six hundred eighty-seven million, one hundred fifty-eight thousand, eight hundred fifty-five".
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