Base | Representation |
---|---|
bin | 10110101101010… |
… | …110101000011010 |
3 | 222112220012012002 |
4 | 112231112220122 |
5 | 1240013103210 |
6 | 101445521002 |
7 | 12304225661 |
oct | 2655265032 |
9 | 875805162 |
10 | 380987930 |
11 | 18606a964 |
12 | a7713162 |
13 | 60c15a5b |
14 | 38855dd8 |
15 | 236aa4a5 |
hex | 16b56a1a |
380987930 has 16 divisors (see below), whose sum is σ = 689032224. Its totient is φ = 151672080.
The previous prime is 380987911. The next prime is 380988017. The reversal of 380987930 is 39789083.
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, 88172 + ... + 92391.
It is an arithmetic number, because the mean of its divisors is an integer number (43064514).
Almost surely, 2380987930 is an apocalyptic number.
380987930 is a deficient number, since it is larger than the sum of its proper divisors (308044294).
380987930 is a wasteful number, since it uses less digits than its factorization.
380987930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 180781.
The product of its (nonzero) digits is 326592, while the sum is 47.
The square root of 380987930 is about 19518.9121110783. The cubic root of 380987930 is about 724.9427969136.
The spelling of 380987930 in words is "three hundred eighty million, nine hundred eighty-seven thousand, nine hundred thirty".
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