Base | Representation |
---|---|
bin | 1011110111111011000 |
3 | 201202201101 |
4 | 1132333120 |
5 | 44422310 |
6 | 12201144 |
7 | 3210226 |
oct | 1367730 |
9 | 652641 |
10 | 389080 |
11 | 24635a |
12 | 1691b4 |
13 | 108133 |
14 | a1b16 |
15 | 7a43a |
hex | 5efd8 |
389080 has 32 divisors (see below), whose sum is σ = 894240. Its totient is φ = 152320.
The previous prime is 389057. The next prime is 389083. The reversal of 389080 is 80983.
389080 = T119 + T120 + ... + T158.
389080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (389083) by changing a digit.
389080 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 2772 + ... + 2908.
It is an arithmetic number, because the mean of its divisors is an integer number (27945).
2389080 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 389080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447120).
389080 is an abundant number, since it is smaller than the sum of its proper divisors (505160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
389080 is a wasteful number, since it uses less digits than its factorization.
389080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 219 (or 215 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 28.
The square root of 389080 is about 623.7627754203. The cubic root of 389080 is about 73.0039404891.
The spelling of 389080 in words is "three hundred eighty-nine thousand, eighty".
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