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3765385 = 513531093
BaseRepresentation
bin1110010111010010001001
321002022010201
432113102021
51430443020
6212412201
744001541
oct16272211
97068121
103765385
112141a98
121317061
13a1ab50
14700321
154e5a0a
hex397489

3765385 has 16 divisors (see below), whose sum is σ = 4962384. Its totient is φ = 2725632.

The previous prime is 3765383. The next prime is 3765397. The reversal of 3765385 is 5835673.

3765385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 121104 + 3644281 = 348^2 + 1909^2 .

It is not a de Polignac number, because 3765385 - 21 = 3765383 is a prime.

It is a Duffinian number.

3765385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3765383) 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 15 ways as a sum of consecutive naturals, for example, 2899 + ... + 3991.

It is an arithmetic number, because the mean of its divisors is an integer number (310149).

Almost surely, 23765385 is an apocalyptic number.

It is an amenable number.

3765385 is a deficient number, since it is larger than the sum of its proper divisors (1196999).

3765385 is a wasteful number, since it uses less digits than its factorization.

3765385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its digits is 75600, while the sum is 37.

The square root of 3765385 is about 1940.4599970110. The cubic root of 3765385 is about 155.5738010534.

The spelling of 3765385 in words is "three million, seven hundred sixty-five thousand, three hundred eighty-five".

Divisors: 1 5 13 53 65 265 689 1093 3445 5465 14209 57929 71045 289645 753077 3765385