Base | Representation |
---|---|
bin | 1011100110101010101 |
3 | 201022121011 |
4 | 1130311111 |
5 | 44131440 |
6 | 12052221 |
7 | 3142405 |
oct | 1346525 |
9 | 638534 |
10 | 380245 |
11 | 23a758 |
12 | 164071 |
13 | 1040c8 |
14 | 9c805 |
15 | 779ea |
hex | 5cd55 |
380245 has 8 divisors (see below), whose sum is σ = 461016. Its totient is φ = 301056.
The previous prime is 380231. The next prime is 380251. The reversal of 380245 is 542083.
It can be written as a sum of positive squares in 4 ways, for example, as 3249 + 376996 = 57^2 + 614^2 .
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 380245 - 27 = 380117 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229 + ... + 901.
It is an arithmetic number, because the mean of its divisors is an integer number (57627).
2380245 is an apocalyptic number.
It is an amenable number.
380245 is a deficient number, since it is larger than the sum of its proper divisors (80771).
380245 is a wasteful number, since it uses less digits than its factorization.
380245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 791.
The product of its (nonzero) digits is 960, while the sum is 22.
The square root of 380245 is about 616.6400895174. The cubic root of 380245 is about 72.4471275229.
It can be divided in two parts, 380 and 245, that added together give a 4-th power (625 = 54).
The spelling of 380245 in words is "three hundred eighty thousand, two hundred forty-five".
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