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52385 = 510477
BaseRepresentation
bin1100110010100001
32122212012
430302201
53134020
61042305
7305504
oct146241
978765
1052385
11363a3
1226395
131aac8
141513b
15107c5
hexcca1

52385 has 4 divisors (see below), whose sum is σ = 62868. Its totient is φ = 41904.

The previous prime is 52379. The next prime is 52387. The reversal of 52385 is 58325.

52385 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29584 + 22801 = 172^2 + 151^2 .

It is a cyclic number.

It is not a de Polignac number, because 52385 - 24 = 52369 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 52385.

It is not an unprimeable number, because it can be changed into a prime (52387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5234 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (15717).

252385 is an apocalyptic number.

It is an amenable number.

52385 is a deficient number, since it is larger than the sum of its proper divisors (10483).

52385 is a wasteful number, since it uses less digits than its factorization.

52385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10482.

The product of its digits is 1200, while the sum is 23.

The square root of 52385 is about 228.8776965980. The cubic root of 52385 is about 37.4170016212.

The spelling of 52385 in words is "fifty-two thousand, three hundred eighty-five".

Divisors: 1 5 10477 52385