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386165 = 5132457
BaseRepresentation
bin1011110010001110101
3201121201102
41132101311
544324130
612135445
73165563
oct1362165
9647642
10386165
1124414a
12167585
13106a00
14a0a33
1579645
hex5e475

386165 has 12 divisors (see below), whose sum is σ = 502884. Its totient is φ = 284544.

The previous prime is 386161. The next prime is 386173. The reversal of 386165 is 561683.

It can be written as a sum of positive squares in 6 ways, for example, as 24964 + 361201 = 158^2 + 601^2 .

It is not a de Polignac number, because 386165 - 22 = 386161 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386161) 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 11 ways as a sum of consecutive naturals, for example, 617 + ... + 1073.

It is an arithmetic number, because the mean of its divisors is an integer number (41907).

2386165 is an apocalyptic number.

It is an amenable number.

386165 is a deficient number, since it is larger than the sum of its proper divisors (116719).

386165 is a wasteful number, since it uses less digits than its factorization.

386165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 475 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 386165 is about 621.4217569413. The cubic root of 386165 is about 72.8211673142.

It can be divided in two parts, 38 and 6165, that multiplied together give a triangular number (234270 = T684).

The spelling of 386165 in words is "three hundred eighty-six thousand, one hundred sixty-five".

Divisors: 1 5 13 65 169 457 845 2285 5941 29705 77233 386165