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52331641 = 72771983
BaseRepresentation
bin1100011110100…
…0010001111001
310122110201111221
43013220101321
5101344103031
65105352041
71203545245
oct307502171
9118421457
1052331641
11275a359a
1215638621
13aac378b
146d43425
1548daa11
hex31e8479

52331641 has 4 divisors (see below), whose sum is σ = 52404352. Its totient is φ = 52258932.

The previous prime is 52331611. The next prime is 52331651. The reversal of 52331641 is 14613325.

52331641 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 Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52331641 - 217 = 52200569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52331611) 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, 35265 + ... + 36718.

It is an arithmetic number, because the mean of its divisors is an integer number (13101088).

Almost surely, 252331641 is an apocalyptic number.

It is an amenable number.

52331641 is a deficient number, since it is larger than the sum of its proper divisors (72711).

52331641 is an equidigital number, since it uses as much as digits as its factorization.

52331641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72710.

The product of its digits is 2160, while the sum is 25.

The square root of 52331641 is about 7234.0611692189. The cubic root of 52331641 is about 374.0429307196.

Adding to 52331641 its reverse (14613325), we get a palindrome (66944966).

The spelling of 52331641 in words is "fifty-two million, three hundred thirty-one thousand, six hundred forty-one".

Divisors: 1 727 71983 52331641