Base | Representation |
---|---|
bin | 111011100111001001… |
… | …1001111101001111010 |
3 | 110020102121012002220112 |
4 | 1313032103033221322 |
5 | 4044133342443223 |
6 | 134450454024322 |
7 | 12151223162000 |
oct | 1671623175172 |
9 | 406377162815 |
10 | 128015202938 |
11 | 4a322276787 |
12 | 209880480a2 |
13 | c0c19212bc |
14 | 62a5a4aa70 |
15 | 34e39a5778 |
hex | 1dce4cfa7a |
128015202938 has 32 divisors (see below), whose sum is σ = 224937753600. Its totient is φ = 54617567760.
The previous prime is 128015202929. The next prime is 128015202961. The reversal of 128015202938 is 839202510821.
128015202938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 128015202895 and 128015202904.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265433 + ... + 571388.
It is an arithmetic number, because the mean of its divisors is an integer number (7029304800).
Almost surely, 2128015202938 is an apocalyptic number.
128015202938 is a deficient number, since it is larger than the sum of its proper divisors (96922550662).
128015202938 is an equidigital number, since it uses as much as digits as its factorization.
128015202938 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 837067 (or 837053 counting only the distinct ones).
The product of its (nonzero) digits is 69120, while the sum is 41.
The spelling of 128015202938 in words is "one hundred twenty-eight billion, fifteen million, two hundred two thousand, nine hundred thirty-eight".
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