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53252741 = 138138561
BaseRepresentation
bin1100101100100…
…1001010000101
310201012112000202
43023021022011
5102113041431
65141220245
71214432543
oct313111205
9121175022
1053252741
1128072633
1215a01685
13b056ac9
147102d93
154a1d8cb
hex32c9285

53252741 has 4 divisors (see below), whose sum is σ = 53292684. Its totient is φ = 53212800.

The previous prime is 53252737. The next prime is 53252777. The reversal of 53252741 is 14725235.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18028516 + 35224225 = 4246^2 + 5935^2 .

It is a cyclic number.

It is not a de Polignac number, because 53252741 - 22 = 53252737 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 (53252701) 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, 17900 + ... + 20661.

It is an arithmetic number, because the mean of its divisors is an integer number (13323171).

Almost surely, 253252741 is an apocalyptic number.

It is an amenable number.

53252741 is a deficient number, since it is larger than the sum of its proper divisors (39943).

53252741 is a wasteful number, since it uses less digits than its factorization.

53252741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39942.

The product of its digits is 8400, while the sum is 29.

The square root of 53252741 is about 7297.4475674718. The cubic root of 53252741 is about 376.2247152466.

Adding to 53252741 its reverse (14725235), we get a palindrome (67977976).

The spelling of 53252741 in words is "fifty-three million, two hundred fifty-two thousand, seven hundred forty-one".

Divisors: 1 1381 38561 53252741