Base | Representation |
---|---|
bin | 1110010101101… |
… | …01010001101000 |
3 | 22101022212101001 |
4 | 13022311101220 |
5 | 221242431133 |
6 | 15534004344 |
7 | 2660236021 |
oct | 712652150 |
9 | 271285331 |
10 | 120280168 |
11 | 619932a8 |
12 | 343466b4 |
13 | 1bbc45c8 |
14 | 11d8dc48 |
15 | a85d87d |
hex | 72b5468 |
120280168 has 32 divisors (see below), whose sum is σ = 247033800. Its totient is φ = 54648832.
The previous prime is 120280163. The next prime is 120280231. The reversal of 120280168 is 861082021.
It can be written as a sum of positive squares in 4 ways, for example, as 119202724 + 1077444 = 10918^2 + 1038^2 .
It is not an unprimeable number, because it can be changed into a prime (120280163) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 11305 + ... + 19192.
Almost surely, 2120280168 is an apocalyptic number.
It is an amenable number.
120280168 is an abundant number, since it is smaller than the sum of its proper divisors (126753632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120280168 is a wasteful number, since it uses less digits than its factorization.
120280168 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30549 (or 30545 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 28.
The square root of 120280168 is about 10967.2315558668. The cubic root of 120280168 is about 493.6259796827.
The spelling of 120280168 in words is "one hundred twenty million, two hundred eighty thousand, one hundred sixty-eight".
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