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444205 = 5731217
BaseRepresentation
bin1101100011100101101
3211120100001
41230130231
5103203310
613304301
73530026
oct1543455
9746301
10444205
11283813
12195091
13127258
14b7c4d
158b93a
hex6c72d

444205 has 8 divisors (see below), whose sum is σ = 540792. Its totient is φ = 350208.

The previous prime is 444187. The next prime is 444209. The reversal of 444205 is 502444.

It can be written as a sum of positive squares in 4 ways, for example, as 32041 + 412164 = 179^2 + 642^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444205 - 25 = 444173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444209) 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 7 ways as a sum of consecutive naturals, for example, 244 + ... + 973.

It is an arithmetic number, because the mean of its divisors is an integer number (67599).

2444205 is an apocalyptic number.

It is an amenable number.

444205 is a deficient number, since it is larger than the sum of its proper divisors (96587).

444205 is a wasteful number, since it uses less digits than its factorization.

444205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 444205 is about 666.4870591392. The cubic root of 444205 is about 76.3005756017.

Adding to 444205 its reverse (502444), we get a palindrome (946649).

The spelling of 444205 in words is "four hundred forty-four thousand, two hundred five".

Divisors: 1 5 73 365 1217 6085 88841 444205