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285341 = 740763
BaseRepresentation
bin1000101101010011101
3112111102012
41011222131
533112331
610041005
72265620
oct1055235
9474365
10285341
11185421
12119165
139cb54
1475db7
155982b
hex45a9d

285341 has 4 divisors (see below), whose sum is σ = 326112. Its totient is φ = 244572.

The previous prime is 285317. The next prime is 285343. The reversal of 285341 is 143582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 285341 - 218 = 23197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20375 + ... + 20388.

It is an arithmetic number, because the mean of its divisors is an integer number (81528).

2285341 is an apocalyptic number.

It is an amenable number.

285341 is a deficient number, since it is larger than the sum of its proper divisors (40771).

285341 is an equidigital number, since it uses as much as digits as its factorization.

285341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40770.

The product of its digits is 960, while the sum is 23.

The square root of 285341 is about 534.1731928878. The cubic root of 285341 is about 65.8346796000.

It can be divided in two parts, 285 and 341, that added together give a palindrome (626).

The spelling of 285341 in words is "two hundred eighty-five thousand, three hundred forty-one".

Divisors: 1 7 40763 285341