Base | Representation |
---|---|
bin | 101101001010… |
… | …001010110011 |
3 | 211021102212022 |
4 | 231022022303 |
5 | 11012310011 |
6 | 1101422055 |
7 | 202423334 |
oct | 55121263 |
9 | 24242768 |
10 | 11838131 |
11 | 6756188 |
12 | 3b6a92b |
13 | 25b6416 |
14 | 180228b |
15 | 108c8db |
hex | b4a2b3 |
11838131 has 2 divisors, whose sum is σ = 11838132. Its totient is φ = 11838130.
The previous prime is 11838107. The next prime is 11838179. The reversal of 11838131 is 13183811.
11838131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 11838131 - 26 = 11838067 is a prime.
It is a super-2 number, since 2×118381312 = 280282691146322, which contains 22 as substring.
It is a Chen prime.
It is equal to p778103 and since 11838131 and 778103 have the same sum of digits, it is a Honaker prime.
It is a self number, because there is not a number n which added to its sum of digits gives 11838131.
It is not a weakly prime, because it can be changed into another prime (11838181) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5919065 + 5919066.
It is an arithmetic number, because the mean of its divisors is an integer number (5919066).
Almost surely, 211838131 is an apocalyptic number.
11838131 is a deficient number, since it is larger than the sum of its proper divisors (1).
11838131 is an equidigital number, since it uses as much as digits as its factorization.
11838131 is an evil number, because the sum of its binary digits is even.
The product of its digits is 576, while the sum is 26.
The square root of 11838131 is about 3440.6585125525. The cubic root of 11838131 is about 227.9087751907.
The spelling of 11838131 in words is "eleven million, eight hundred thirty-eight thousand, one hundred thirty-one".
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