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52745517 = 3211532783
BaseRepresentation
bin1100100100110…
…1010100101101
310200020202020200
43021031110231
5102000324032
65122304113
71210221006
oct311152455
9120222220
1052745517
1127856540
12157b8039
13ac09c86
1470101ad
15496d47c
hex324d52d

52745517 has 12 divisors (see below), whose sum is σ = 83114304. Its totient is φ = 31966920.

The previous prime is 52745507. The next prime is 52745531. The reversal of 52745517 is 71554725.

52745517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52745517 - 26 = 52745453 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52745507) 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 11 ways as a sum of consecutive naturals, for example, 266293 + ... + 266490.

It is an arithmetic number, because the mean of its divisors is an integer number (6926192).

Almost surely, 252745517 is an apocalyptic number.

It is an amenable number.

52745517 is a deficient number, since it is larger than the sum of its proper divisors (30368787).

52745517 is a wasteful number, since it uses less digits than its factorization.

52745517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532800 (or 532797 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 52745517 is about 7262.6108941620. The cubic root of 52745517 is about 375.0264088068.

The spelling of 52745517 in words is "fifty-two million, seven hundred forty-five thousand, five hundred seventeen".

Divisors: 1 3 9 11 33 99 532783 1598349 4795047 5860613 17581839 52745517