Base | Representation |
---|---|
bin | 10111111101111… |
… | …00100100010011 |
3 | 112000022102021122 |
4 | 23332330210103 |
5 | 402432103022 |
6 | 31541112455 |
7 | 4660620506 |
oct | 1376744423 |
9 | 460272248 |
10 | 201050387 |
11 | a354014a |
12 | 573b872b |
13 | 32864435 |
14 | 1c9b713d |
15 | 129b5742 |
hex | bfbc913 |
201050387 has 2 divisors, whose sum is σ = 201050388. Its totient is φ = 201050386.
The previous prime is 201050363. The next prime is 201050389. The reversal of 201050387 is 783050102.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 201050387 - 26 = 201050323 is a prime.
It is a super-2 number, since 2×2010503872 = 80842516225699538, which contains 22 as substring.
Together with 201050389, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (201050389) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100525193 + 100525194.
It is an arithmetic number, because the mean of its divisors is an integer number (100525194).
Almost surely, 2201050387 is an apocalyptic number.
201050387 is a deficient number, since it is larger than the sum of its proper divisors (1).
201050387 is an equidigital number, since it uses as much as digits as its factorization.
201050387 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1680, while the sum is 26.
The square root of 201050387 is about 14179.2237798830. The cubic root of 201050387 is about 585.8255439791.
The spelling of 201050387 in words is "two hundred one million, fifty thousand, three hundred eighty-seven".
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