Base | Representation |
---|---|
bin | 1100110101000010… |
… | …11100111111010000 |
3 | 122202222220121002201 |
4 | 12122201130333100 |
5 | 103101140144143 |
6 | 3055233252544 |
7 | 332451113104 |
oct | 63241347720 |
9 | 18688817081 |
10 | 6887428048 |
11 | 2a148566a6 |
12 | 1402704154 |
13 | 859bb0017 |
14 | 494a15904 |
15 | 2a49ce64d |
hex | 19a85cfd0 |
6887428048 has 60 divisors (see below), whose sum is σ = 13872823020. Its totient is φ = 3312055296.
The previous prime is 6887428027. The next prime is 6887428049. The reversal of 6887428048 is 8408247886.
It can be written as a sum of positive squares in 6 ways, for example, as 1365154704 + 5522273344 = 36948^2 + 74312^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 6887428048.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6887428049) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1947690 + ... + 1951222.
It is an arithmetic number, because the mean of its divisors is an integer number (231213717).
Almost surely, 26887428048 is an apocalyptic number.
It is an amenable number.
6887428048 is an abundant number, since it is smaller than the sum of its proper divisors (6985394972).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6887428048 is a wasteful number, since it uses less digits than its factorization.
6887428048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3704 (or 3661 counting only the distinct ones).
The product of its (nonzero) digits is 5505024, while the sum is 55.
The square root of 6887428048 is about 82990.5298693773. The cubic root of 6887428048 is about 1902.6213170416.
It can be divided in two parts, 688742 and 8048, that added together give a triangular number (696790 = T1180).
The spelling of 6887428048 in words is "six billion, eight hundred eighty-seven million, four hundred twenty-eight thousand, forty-eight".
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