Base | Representation |
---|---|
bin | 10111111001010… |
… | …00100001010011 |
3 | 111222011121110101 |
4 | 23330220201103 |
5 | 402303201422 |
6 | 31520113231 |
7 | 4652513542 |
oct | 1374504123 |
9 | 458147411 |
10 | 200443987 |
11 | a3166597 |
12 | 57165817 |
13 | 326b1413 |
14 | 1c89a159 |
15 | 128e5c27 |
hex | bf28853 |
200443987 has 8 divisors (see below), whose sum is σ = 203982480. Its totient is φ = 196913760.
The previous prime is 200443963. The next prime is 200443993. The reversal of 200443987 is 789344002.
It is a happy number.
200443987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 200443987 - 223 = 192055379 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (200443907) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66168 + ... + 69130.
It is an arithmetic number, because the mean of its divisors is an integer number (25497810).
Almost surely, 2200443987 is an apocalyptic number.
200443987 is a deficient number, since it is larger than the sum of its proper divisors (3538493).
200443987 is a wasteful number, since it uses less digits than its factorization.
200443987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4133.
The product of its (nonzero) digits is 48384, while the sum is 37.
The square root of 200443987 is about 14157.8242325578. The cubic root of 200443987 is about 585.2359697718.
Adding to 200443987 its reverse (789344002), we get a palindrome (989787989).
The spelling of 200443987 in words is "two hundred million, four hundred forty-three thousand, nine hundred eighty-seven".
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