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227212 = 22431321
BaseRepresentation
bin110111011110001100
3102112200021
4313132030
524232322
64511524
71634266
oct673614
9375607
10227212
11145787
12ab5a4
137c55b
145cb36
15474c7
hex3778c

227212 has 12 divisors (see below), whose sum is σ = 407176. Its totient is φ = 110880.

The previous prime is 227207. The next prime is 227219. The reversal of 227212 is 212722.

227212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (227219) by changing a digit.

227212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 489 + ... + 832.

2227212 is an apocalyptic number.

It is an amenable number.

227212 is a deficient number, since it is larger than the sum of its proper divisors (179964).

227212 is a wasteful number, since it uses less digits than its factorization.

227212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368 (or 1366 counting only the distinct ones).

The product of its digits is 112, while the sum is 16.

The square root of 227212 is about 476.6675990667. The cubic root of 227212 is about 61.0206863460.

Adding to 227212 its reverse (212722), we get a palindrome (439934).

The spelling of 227212 in words is "two hundred twenty-seven thousand, two hundred twelve", and thus it is an iban number.

Divisors: 1 2 4 43 86 172 1321 2642 5284 56803 113606 227212