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52553243 = 60187443
BaseRepresentation
bin1100100001111…
…0011000011011
310122212222111102
43020132120123
5101423200433
65114222015
71205460311
oct310363033
9118788442
1052553243
1127735036
121572490b
13ab705c2
146da00b1
1549314e8
hex321e61b

52553243 has 4 divisors (see below), whose sum is σ = 52641288. Its totient is φ = 52465200.

The previous prime is 52553233. The next prime is 52553257. The reversal of 52553243 is 34235525.

52553243 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.

It is a cyclic number.

It is not a de Polignac number, because 52553243 - 24 = 52553227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52553213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43121 + ... + 44322.

It is an arithmetic number, because the mean of its divisors is an integer number (13160322).

Almost surely, 252553243 is an apocalyptic number.

52553243 is a deficient number, since it is larger than the sum of its proper divisors (88045).

52553243 is an equidigital number, since it uses as much as digits as its factorization.

52553243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88044.

The product of its digits is 18000, while the sum is 29.

The square root of 52553243 is about 7249.3615580960. The cubic root of 52553243 is about 374.5701575569.

Adding to 52553243 its reverse (34235525), we get a palindrome (86788768).

The spelling of 52553243 in words is "fifty-two million, five hundred fifty-three thousand, two hundred forty-three".

Divisors: 1 601 87443 52553243