Base | Representation |
---|---|
bin | 11010000110100… |
… | …01000101011011 |
3 | 120021000022221202 |
4 | 31003101011123 |
5 | 422023211334 |
6 | 33421024415 |
7 | 5266062662 |
oct | 1503210533 |
9 | 507008852 |
10 | 218960219 |
11 | 102663065 |
12 | 613b510b |
13 | 3649537a |
14 | 21119dd9 |
15 | 1435217e |
hex | d0d115b |
218960219 has 2 divisors, whose sum is σ = 218960220. Its totient is φ = 218960218.
The previous prime is 218960129. The next prime is 218960227. The reversal of 218960219 is 912069812.
Together with previous prime (218960129) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-218960219 is a prime.
It is a super-2 number, since 2×2189602192 = 95887155009055922, which contains 22 as substring.
It is equal to p12068498 and since 218960219 and 12068498 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (218960239) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109480109 + 109480110.
It is an arithmetic number, because the mean of its divisors is an integer number (109480110).
Almost surely, 2218960219 is an apocalyptic number.
218960219 is a deficient number, since it is larger than the sum of its proper divisors (1).
218960219 is an equidigital number, since it uses as much as digits as its factorization.
218960219 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 15552, while the sum is 38.
The square root of 218960219 is about 14797.3044504734. The cubic root of 218960219 is about 602.7285167043.
The spelling of 218960219 in words is "two hundred eighteen million, nine hundred sixty thousand, two hundred nineteen".
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