Base | Representation |
---|---|
bin | 10111000001001… |
… | …010011111101001 |
3 | 222220200000212121 |
4 | 113001022133221 |
5 | 1242330243342 |
6 | 102153111241 |
7 | 12366325261 |
oct | 2701123751 |
9 | 886600777 |
10 | 386181097 |
11 | 188a97635 |
12 | a93b8521 |
13 | 62013733 |
14 | 394087a1 |
15 | 23d84067 |
hex | 1704a7e9 |
386181097 has 2 divisors, whose sum is σ = 386181098. Its totient is φ = 386181096.
The previous prime is 386181079. The next prime is 386181113. The reversal of 386181097 is 790181683.
Together with previous prime (386181079) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 376515216 + 9665881 = 19404^2 + 3109^2 .
It is an emirp because it is prime and its reverse (790181683) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 386181097 - 27 = 386180969 is a prime.
It is a zygodrome in base 9.
It is not a weakly prime, because it can be changed into another prime (386181007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193090548 + 193090549.
It is an arithmetic number, because the mean of its divisors is an integer number (193090549).
Almost surely, 2386181097 is an apocalyptic number.
It is an amenable number.
386181097 is a deficient number, since it is larger than the sum of its proper divisors (1).
386181097 is an equidigital number, since it uses as much as digits as its factorization.
386181097 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 72576, while the sum is 43.
The square root of 386181097 is about 19651.4909612477. The cubic root of 386181097 is about 728.2217913214.
The spelling of 386181097 in words is "three hundred eighty-six million, one hundred eighty-one thousand, ninety-seven".
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