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52160243 = 255720399
BaseRepresentation
bin1100011011111…
…0011011110011
310122011000101212
43012332123303
5101323111433
65101550335
71202232452
oct306763363
9118130355
1052160243
1127496843
12155753ab
13aa63765
146cdab99
1548a4d48
hex31be6f3

52160243 has 4 divisors (see below), whose sum is σ = 52183200. Its totient is φ = 52137288.

The previous prime is 52160239. The next prime is 52160257. The reversal of 52160243 is 34206125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52160243 - 22 = 52160239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52160443) 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 in 3 ways as a sum of consecutive naturals, for example, 7643 + ... + 12756.

It is an arithmetic number, because the mean of its divisors is an integer number (13045800).

Almost surely, 252160243 is an apocalyptic number.

52160243 is a deficient number, since it is larger than the sum of its proper divisors (22957).

52160243 is a wasteful number, since it uses less digits than its factorization.

52160243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22956.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 52160243 is about 7222.2048572441. The cubic root of 52160243 is about 373.6341255909.

Adding to 52160243 its reverse (34206125), we get a palindrome (86366368).

The spelling of 52160243 in words is "fifty-two million, one hundred sixty thousand, two hundred forty-three".

Divisors: 1 2557 20399 52160243