Base | Representation |
---|---|
bin | 10110101100110… |
… | …110000111000001 |
3 | 222112122102110102 |
4 | 112230312013001 |
5 | 1234444322341 |
6 | 101443012145 |
7 | 12303132422 |
oct | 2654660701 |
9 | 875572412 |
10 | 380854721 |
11 | 185a89875 |
12 | a766a055 |
13 | 60b9a230 |
14 | 3881d649 |
15 | 23680c9b |
hex | 16b361c1 |
380854721 has 8 divisors (see below), whose sum is σ = 415929024. Its totient is φ = 346605840.
The previous prime is 380854717. The next prime is 380854751. The reversal of 380854721 is 127458083.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 380854721 - 22 = 380854717 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (380854711) 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, 205391 + ... + 207236.
It is an arithmetic number, because the mean of its divisors is an integer number (51991128).
Almost surely, 2380854721 is an apocalyptic number.
It is an amenable number.
380854721 is a deficient number, since it is larger than the sum of its proper divisors (35074303).
380854721 is a wasteful number, since it uses less digits than its factorization.
380854721 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 412711.
The product of its (nonzero) digits is 53760, while the sum is 38.
The square root of 380854721 is about 19515.4995068023. The cubic root of 380854721 is about 724.8582971570.
The spelling of 380854721 in words is "three hundred eighty million, eight hundred fifty-four thousand, seven hundred twenty-one".
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