Base | Representation |
---|---|
bin | 1111010010101… |
… | …00101010101100 |
3 | 22221100221120101 |
4 | 13221110222230 |
5 | 230314214233 |
6 | 20421200444 |
7 | 3115205650 |
oct | 751245254 |
9 | 287327511 |
10 | 128273068 |
11 | 66452500 |
12 | 36b60124 |
13 | 20762731 |
14 | 13070a60 |
15 | b3dbc7d |
hex | 7a54aac |
128273068 has 36 divisors (see below), whose sum is σ = 281996176. Its totient is φ = 49975200.
The previous prime is 128273059. The next prime is 128273087. The reversal of 128273068 is 860372821.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15543 + ... + 22318.
Almost surely, 2128273068 is an apocalyptic number.
It is an amenable number.
128273068 is an abundant number, since it is smaller than the sum of its proper divisors (153723108).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128273068 is a wasteful number, since it uses less digits than its factorization.
128273068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37894 (or 37881 counting only the distinct ones).
The product of its (nonzero) digits is 32256, while the sum is 37.
The square root of 128273068 is about 11325.7700841930. The cubic root of 128273068 is about 504.3265447038.
The spelling of 128273068 in words is "one hundred twenty-eight million, two hundred seventy-three thousand, sixty-eight".
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