Base | Representation |
---|---|
bin | 110111111010101110… |
… | …0010000100011001000 |
3 | 102110221201100201210022 |
4 | 1233311130100203020 |
5 | 3431411434131403 |
6 | 131055340440012 |
7 | 11450512446326 |
oct | 1576534204310 |
9 | 373851321708 |
10 | 120081942728 |
11 | 46a21142990 |
12 | 1b333249008 |
13 | b429177aa7 |
14 | 5b52196d16 |
15 | 31cc28ed38 |
hex | 1bf57108c8 |
120081942728 has 32 divisors (see below), whose sum is σ = 249081635520. Its totient is φ = 53813928000.
The previous prime is 120081942671. The next prime is 120081942737. The reversal of 120081942728 is 827249180021.
120081942728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (44).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9603383 + ... + 9615878.
It is an arithmetic number, because the mean of its divisors is an integer number (7783801110).
Almost surely, 2120081942728 is an apocalyptic number.
It is an amenable number.
120081942728 is an abundant number, since it is smaller than the sum of its proper divisors (128999692792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120081942728 is a wasteful number, since it uses less digits than its factorization.
120081942728 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19219349 (or 19219345 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 44.
The spelling of 120081942728 in words is "one hundred twenty billion, eighty-one million, nine hundred forty-two thousand, seven hundred twenty-eight".
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