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227201 = 1317477
BaseRepresentation
bin110111011110000001
3102112122212
4313132001
524232301
64511505
71634252
oct673601
9375585
10227201
11145777
12ab595
137c550
145cb29
15474bb
hex37781

227201 has 4 divisors (see below), whose sum is σ = 244692. Its totient is φ = 209712.

The previous prime is 227191. The next prime is 227207. The reversal of 227201 is 102722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102722 = 251361.

It can be written as a sum of positive squares in 2 ways, for example, as 25600 + 201601 = 160^2 + 449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-227201 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (227207) 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, 8726 + ... + 8751.

It is an arithmetic number, because the mean of its divisors is an integer number (61173).

2227201 is an apocalyptic number.

It is an amenable number.

227201 is a deficient number, since it is larger than the sum of its proper divisors (17491).

227201 is a wasteful number, since it uses less digits than its factorization.

227201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17490.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 227201 is about 476.6560604881. The cubic root of 227201 is about 61.0197016000.

Adding to 227201 its reverse (102722), we get a palindrome (329923).

The spelling of 227201 in words is "two hundred twenty-seven thousand, two hundred one", and thus it is an iban number.

Divisors: 1 13 17477 227201