Base | Representation |
---|---|
bin | 1010110101011100100… |
… | …0101011100010100000 |
3 | 122210110210120111120121 |
4 | 2231113020223202200 |
5 | 11022211221041013 |
6 | 221303011450024 |
7 | 16306600350565 |
oct | 2552710534240 |
9 | 583423514517 |
10 | 186145487008 |
11 | 71a42302568 |
12 | 300ab8b6914 |
13 | 14726bbbcb0 |
14 | 901c07a86c |
15 | 4c96ecd58d |
hex | 2b5722b8a0 |
186145487008 has 48 divisors (see below), whose sum is σ = 395925414696. Its totient is φ = 85638758400.
The previous prime is 186145486997. The next prime is 186145487009. The reversal of 186145487008 is 800784541681.
It can be written as a sum of positive squares in 4 ways, for example, as 77780747664 + 108364739344 = 278892^2 + 329188^2 .
It is a Harshad number since it is a multiple of its sum of digits (52).
It is not an unprimeable number, because it can be changed into a prime (186145487009) 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 7 ways as a sum of consecutive naturals, for example, 584593 + ... + 845008.
Almost surely, 2186145487008 is an apocalyptic number.
It is an amenable number.
186145487008 is an abundant number, since it is smaller than the sum of its proper divisors (209779927688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
186145487008 is a wasteful number, since it uses less digits than its factorization.
186145487008 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1429937 (or 1429929 counting only the distinct ones).
The product of its (nonzero) digits is 1720320, while the sum is 52.
The spelling of 186145487008 in words is "one hundred eighty-six billion, one hundred forty-five million, four hundred eighty-seven thousand, eight".
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