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52852639 = 77550377
BaseRepresentation
bin1100100110011…
…1011110011111
310200110012012011
43021213132133
5102012241024
65124452051
71211145220
oct311473637
9120405164
1052852639
1127919a74
121584a027
13ac46968
14703b247
154990094
hex326779f

52852639 has 4 divisors (see below), whose sum is σ = 60403024. Its totient is φ = 45302256.

The previous prime is 52852621. The next prime is 52852651. The reversal of 52852639 is 93625825.

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 52852639 - 213 = 52844447 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 (52852619) 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, 3775182 + ... + 3775195.

It is an arithmetic number, because the mean of its divisors is an integer number (15100756).

Almost surely, 252852639 is an apocalyptic number.

52852639 is a deficient number, since it is larger than the sum of its proper divisors (7550385).

52852639 is an equidigital number, since it uses as much as digits as its factorization.

52852639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7550384.

The product of its digits is 129600, while the sum is 40.

The square root of 52852639 is about 7269.9820494964. The cubic root of 52852639 is about 375.2801201832.

The spelling of 52852639 in words is "fifty-two million, eight hundred fifty-two thousand, six hundred thirty-nine".

Divisors: 1 7 7550377 52852639