Base | Representation |
---|---|
bin | 111011101011111000… |
… | …0011110010101000000 |
3 | 110020211122201201200221 |
4 | 1313113300132111000 |
5 | 4100000002011120 |
6 | 134514322352424 |
7 | 12155160556333 |
oct | 1672760362500 |
9 | 406748651627 |
10 | 128173860160 |
11 | 4a3a3891255 |
12 | 20a111bb714 |
13 | c118761808 |
14 | 62bcb4a61a |
15 | 35028950aa |
hex | 1dd7c1e540 |
128173860160 has 112 divisors (see below), whose sum is σ = 327340569600. Its totient is φ = 47654590464.
The previous prime is 128173860137. The next prime is 128173860193. The reversal of 128173860160 is 61068371821.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123361 + ... + 521119.
Almost surely, 2128173860160 is an apocalyptic number.
128173860160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 128173860160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163670284800).
128173860160 is an abundant number, since it is smaller than the sum of its proper divisors (199166709440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128173860160 is a wasteful number, since it uses less digits than its factorization.
128173860160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 397848 (or 397838 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 43.
The spelling of 128173860160 in words is "one hundred twenty-eight billion, one hundred seventy-three million, eight hundred sixty thousand, one hundred sixty".
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