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227065 = 545413
BaseRepresentation
bin110111011011111001
3102112110211
4313123321
524231230
64511121
71633666
oct673371
9375424
10227065
11145663
12ab4a1
137c477
145ca6d
154742a
hex376f9

227065 has 4 divisors (see below), whose sum is σ = 272484. Its totient is φ = 181648.

The previous prime is 227053. The next prime is 227081. The reversal of 227065 is 560722.

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 29929 + 197136 = 173^2 + 444^2 .

It is a cyclic number.

It is not a de Polignac number, because 227065 - 27 = 226937 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

227065 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22702 + ... + 22711.

It is an arithmetic number, because the mean of its divisors is an integer number (68121).

2227065 is an apocalyptic number.

It is an amenable number.

227065 is a deficient number, since it is larger than the sum of its proper divisors (45419).

227065 is an equidigital number, since it uses as much as digits as its factorization.

227065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45418.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 227065 is about 476.5133786160. The cubic root of 227065 is about 61.0075239308.

Adding to 227065 its reverse (560722), we get a palindrome (787787).

The spelling of 227065 in words is "two hundred twenty-seven thousand, sixty-five".

Divisors: 1 5 45413 227065