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200885 = 540177
BaseRepresentation
bin110001000010110101
3101012120012
4301002311
522412020
64150005
71464446
oct610265
9335505
10200885
11127a23
1298305
1370589
14532cd
153e7c5
hex310b5

200885 has 4 divisors (see below), whose sum is σ = 241068. Its totient is φ = 160704.

The previous prime is 200881. The next prime is 200891. The reversal of 200885 is 588002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588002 = 2294001.

It can be written as a sum of positive squares in 2 ways, for example, as 139876 + 61009 = 374^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 200885 - 22 = 200881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200885.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 200885.

It is not an unprimeable number, because it can be changed into a prime (200881) 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, 20084 + ... + 20093.

It is an arithmetic number, because the mean of its divisors is an integer number (60267).

2200885 is an apocalyptic number.

It is an amenable number.

200885 is a deficient number, since it is larger than the sum of its proper divisors (40183).

200885 is an equidigital number, since it uses as much as digits as its factorization.

200885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40182.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 200885 is about 448.2019634049. The cubic root of 200885 is about 58.5664863681.

Adding to 200885 its reverse (588002), we get a palindrome (788887).

The spelling of 200885 in words is "two hundred thousand, eight hundred eighty-five".

Divisors: 1 5 40177 200885