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52442053 = 66617873
BaseRepresentation
bin1100100000001…
…1001111000101
310122200022222021
43020003033011
5101411121203
65112003141
71204515166
oct310031705
9118608867
1052442053
1127669544
12156904b1
13ab31b01
146d7176d
15490d5bd
hex32033c5

52442053 has 4 divisors (see below), whose sum is σ = 52456588. Its totient is φ = 52427520.

The previous prime is 52442011. The next prime is 52442077. The reversal of 52442053 is 35024425.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 24383844 + 28058209 = 4938^2 + 5297^2 .

It is a cyclic number.

It is not a de Polignac number, because 52442053 - 213 = 52433861 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 (52442003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2725 + ... + 10597.

It is an arithmetic number, because the mean of its divisors is an integer number (13114147).

Almost surely, 252442053 is an apocalyptic number.

It is an amenable number.

52442053 is a deficient number, since it is larger than the sum of its proper divisors (14535).

52442053 is an equidigital number, since it uses as much as digits as its factorization.

52442053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14534.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 52442053 is about 7241.6885461887. The cubic root of 52442053 is about 374.3058042984.

Adding to 52442053 its reverse (35024425), we get a palindrome (87466478).

The spelling of 52442053 in words is "fifty-two million, four hundred forty-two thousand, fifty-three".

Divisors: 1 6661 7873 52442053