Base | Representation |
---|---|
bin | 10111110101000… |
… | …10100001100101 |
3 | 111221010201120202 |
4 | 23322202201211 |
5 | 402133121031 |
6 | 31500240245 |
7 | 4645036445 |
oct | 1372424145 |
9 | 457121522 |
10 | 199895141 |
11 | a29211a6 |
12 | 56b40085 |
13 | 3254b664 |
14 | 1c796125 |
15 | 128382cb |
hex | bea2865 |
199895141 has 4 divisors (see below), whose sum is σ = 199924332. Its totient is φ = 199865952.
The previous prime is 199895107. The next prime is 199895167. The reversal of 199895141 is 141598991.
199895141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 141598991 = 281 ⋅503911.
It can be written as a sum of positive squares in 2 ways, for example, as 77704225 + 122190916 = 8815^2 + 11054^2 .
It is a cyclic number.
It is not a de Polignac number, because 199895141 - 218 = 199632997 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (199895341) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1865 + ... + 20081.
It is an arithmetic number, because the mean of its divisors is an integer number (49981083).
Almost surely, 2199895141 is an apocalyptic number.
It is an amenable number.
199895141 is a deficient number, since it is larger than the sum of its proper divisors (29191).
199895141 is a wasteful number, since it uses less digits than its factorization.
199895141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29190.
The product of its digits is 116640, while the sum is 47.
The square root of 199895141 is about 14138.4278121720. The cubic root of 199895141 is about 584.7013265838.
The spelling of 199895141 in words is "one hundred ninety-nine million, eight hundred ninety-five thousand, one hundred forty-one".
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