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201271 = 728753
BaseRepresentation
bin110001001000110111
3101020002111
4301020313
522420041
64151451
71465540
oct611067
9336074
10201271
11128244
1298587
13707c5
14534c7
153e981
hex31237

201271 has 4 divisors (see below), whose sum is σ = 230032. Its totient is φ = 172512.

The previous prime is 201251. The next prime is 201281. The reversal of 201271 is 172102.

201271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201271 - 217 = 70199 is a prime.

It is a Duffinian number.

201271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211) 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, 14370 + ... + 14383.

It is an arithmetic number, because the mean of its divisors is an integer number (57508).

2201271 is an apocalyptic number.

201271 is a deficient number, since it is larger than the sum of its proper divisors (28761).

201271 is an equidigital number, since it uses as much as digits as its factorization.

201271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28760.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 201271 is about 448.6323661975. The cubic root of 201271 is about 58.6039741507.

Adding to 201271 its reverse (172102), we get a palindrome (373373).

The spelling of 201271 in words is "two hundred one thousand, two hundred seventy-one", and thus it is an iban number.

Divisors: 1 7 28753 201271