Base | Representation |
---|---|
bin | 100011000011… |
… | …1110100010001 |
3 | 1021120220111102 |
4 | 1012013310101 |
5 | 14201211342 |
6 | 1453554145 |
7 | 312150056 |
oct | 106076421 |
9 | 37526442 |
10 | 18382097 |
11 | a415818 |
12 | 61a5955 |
13 | 3a67ba6 |
14 | 262702d |
15 | 1931832 |
hex | 1187d11 |
18382097 has 2 divisors, whose sum is σ = 18382098. Its totient is φ = 18382096.
The previous prime is 18382079. The next prime is 18382121. The reversal of 18382097 is 79028381.
Together with previous prime (18382079) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 9388096 + 8994001 = 3064^2 + 2999^2 .
It is a cyclic number.
It is not a de Polignac number, because 18382097 - 26 = 18382033 is a prime.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 18382097.
It is not a weakly prime, because it can be changed into another prime (18382297) by changing a digit.
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 as a sum of consecutive naturals, namely, 9191048 + 9191049.
It is an arithmetic number, because the mean of its divisors is an integer number (9191049).
Almost surely, 218382097 is an apocalyptic number.
It is an amenable number.
18382097 is a deficient number, since it is larger than the sum of its proper divisors (1).
18382097 is an equidigital number, since it uses as much as digits as its factorization.
18382097 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 24192, while the sum is 38.
The square root of 18382097 is about 4287.4347808451. The cubic root of 18382097 is about 263.9155731334.
The spelling of 18382097 in words is "eighteen million, three hundred eighty-two thousand, ninety-seven".
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