Base | Representation |
---|---|
bin | 101111111100… |
… | …111000010000 |
3 | 212122121222022 |
4 | 233330320100 |
5 | 11204221003 |
6 | 1125231012 |
7 | 211562414 |
oct | 57747020 |
9 | 25577868 |
10 | 12570128 |
11 | 710613a |
12 | 4262468 |
13 | 27b165c |
14 | 1952d44 |
15 | 1184738 |
hex | bfce10 |
12570128 has 20 divisors (see below), whose sum is σ = 25141248. Its totient is φ = 6082080.
The previous prime is 12570119. The next prime is 12570139. The reversal of 12570128 is 82107521.
12570128 is an admirable number.
It is a junction number, because it is equal to n+sod(n) for n = 12570097 and 12570106.
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 3 ways as a sum of consecutive naturals, for example, 12176 + ... + 13167.
Almost surely, 212570128 is an apocalyptic number.
It is an amenable number.
12570128 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12570128 is a wasteful number, since it uses less digits than its factorization.
12570128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25382 (or 25376 counting only the distinct ones).
The product of its (nonzero) digits is 1120, while the sum is 26.
The square root of 12570128 is about 3545.4376316613. The cubic root of 12570128 is about 232.5126396952.
Adding to 12570128 its reverse (82107521), we get a palindrome (94677649).
The spelling of 12570128 in words is "twelve million, five hundred seventy thousand, one hundred twenty-eight".
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