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271289 is a prime number
BaseRepresentation
bin1000010001110111001
3111210010202
41002032321
532140124
65451545
72206634
oct1021671
9453122
10271289
11175907
12110bb5
1396635
1470c1b
15555ae
hex423b9

271289 has 2 divisors, whose sum is σ = 271290. Its totient is φ = 271288.

The previous prime is 271279. The next prime is 271333. The reversal of 271289 is 982172.

It is a happy number.

271289 is nontrivially palindromic in base 6.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258064 + 13225 = 508^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 271289 - 24 = 271273 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (271279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135644 + 135645.

It is an arithmetic number, because the mean of its divisors is an integer number (135645).

2271289 is an apocalyptic number.

It is an amenable number.

271289 is a deficient number, since it is larger than the sum of its proper divisors (1).

271289 is an equidigital number, since it uses as much as digits as its factorization.

271289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

The square root of 271289 is about 520.8541062524. The cubic root of 271289 is about 64.7357317636.

The spelling of 271289 in words is "two hundred seventy-one thousand, two hundred eighty-nine".