Base | Representation |
---|---|
bin | 10111001100100… |
… | …001101110000000 |
3 | 1000010021100220020 |
4 | 113030201232000 |
5 | 1244111103213 |
6 | 102341013440 |
7 | 12433542462 |
oct | 2714415600 |
9 | 1003240806 |
10 | 389159808 |
11 | 18a741584 |
12 | aa3b4280 |
13 | 6281749b |
14 | 39982132 |
15 | 24271923 |
hex | 17321b80 |
389159808 has 64 divisors (see below), whose sum is σ = 1036054800. Its totient is φ = 129425408.
The previous prime is 389159807. The next prime is 389159831. The reversal of 389159808 is 808951983.
It is a tau number, because it is divible by the number of its divisors (64).
It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (389159803) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226858 + ... + 228566.
Almost surely, 2389159808 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 389159808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518027400).
389159808 is an abundant number, since it is smaller than the sum of its proper divisors (646894992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
389159808 is a wasteful number, since it uses less digits than its factorization.
389159808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2319 (or 2307 counting only the distinct ones).
The product of its (nonzero) digits is 622080, while the sum is 51.
The square root of 389159808 is about 19727.1338009352. The cubic root of 389159808 is about 730.0893166502.
The spelling of 389159808 in words is "three hundred eighty-nine million, one hundred fifty-nine thousand, eight hundred eight".
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