Base | Representation |
---|---|
bin | 1111010010100… |
… | …11111100011010 |
3 | 22221100210111200 |
4 | 13221103330122 |
5 | 230314120411 |
6 | 20421135030 |
7 | 3115164216 |
oct | 751237432 |
9 | 287323450 |
10 | 128270106 |
11 | 66450258 |
12 | 36b5a476 |
13 | 20761293 |
14 | 1306d946 |
15 | b3dae56 |
hex | 7a53f1a |
128270106 has 24 divisors (see below), whose sum is σ = 278160480. Its totient is φ = 42719496.
The previous prime is 128270089. The next prime is 128270111. The reversal of 128270106 is 601072821.
It is a self number, because there is not a number n which added to its sum of digits gives 128270106.
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, 25075 + ... + 29753.
It is an arithmetic number, because the mean of its divisors is an integer number (11590020).
Almost surely, 2128270106 is an apocalyptic number.
128270106 is an abundant number, since it is smaller than the sum of its proper divisors (149890374).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128270106 is a wasteful number, since it uses less digits than its factorization.
128270106 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6210 (or 6207 counting only the distinct ones).
The product of its (nonzero) digits is 1344, while the sum is 27.
The square root of 128270106 is about 11325.6393197029. The cubic root of 128270106 is about 504.3226628114.
The spelling of 128270106 in words is "one hundred twenty-eight million, two hundred seventy thousand, one hundred six".
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