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52485517 = 73236653
BaseRepresentation
bin1100100000110…
…1110110001101
310122202112121001
43020031312031
5101414014032
65112540301
71205056000
oct310156615
9118675531
1052485517
1127699167
12156b1691
13ab48826
146d83537
15491b3e7
hex320dd8d

52485517 has 16 divisors (see below), whose sum is σ = 63878400. Its totient is φ = 43025136.

The previous prime is 52485509. The next prime is 52485527. The reversal of 52485517 is 71558425.

52485517 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 52485517 - 23 = 52485509 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 (52485527) 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 15 ways as a sum of consecutive naturals, for example, 4563 + ... + 11215.

It is an arithmetic number, because the mean of its divisors is an integer number (3992400).

Almost surely, 252485517 is an apocalyptic number.

It is an amenable number.

52485517 is a deficient number, since it is larger than the sum of its proper divisors (11392883).

52485517 is an equidigital number, since it uses as much as digits as its factorization.

52485517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697 (or 6683 counting only the distinct ones).

The product of its digits is 56000, while the sum is 37.

The square root of 52485517 is about 7244.6888822088. The cubic root of 52485517 is about 374.4091840232.

The spelling of 52485517 in words is "fifty-two million, four hundred eighty-five thousand, five hundred seventeen".

Divisors: 1 7 23 49 161 343 1127 6653 7889 46571 153019 325997 1071133 2281979 7497931 52485517