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11441 = 17673
BaseRepresentation
bin10110010110001
3120200202
42302301
5331231
6124545
745233
oct26261
916622
1011441
118661
126755
135291
144253
1535cb
hex2cb1

11441 has 4 divisors (see below), whose sum is σ = 12132. Its totient is φ = 10752.

The previous prime is 11437. The next prime is 11443. The reversal of 11441 is 14411.

Adding to 11441 its reverse (14411), we get a palindrome (25852).

It can be divided in two parts, 11 and 441, that multiplied together give a triangular number (4851 = T98).

11441 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 can be written as a sum of positive squares in 2 ways, for example, as 6400 + 5041 = 80^2 + 71^2 .

It is a cyclic number.

It is not a de Polignac number, because 11441 - 22 = 11437 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (11443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320 + ... + 353.

It is an arithmetic number, because the mean of its divisors is an integer number (3033).

211441 is an apocalyptic number.

It is an amenable number.

11441 is a deficient number, since it is larger than the sum of its proper divisors (691).

11441 is an equidigital number, since it uses as much as digits as its factorization.

11441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690.

The product of its digits is 16, while the sum is 11.

The square root of 11441 is about 106.9626102898. The cubic root of 11441 is about 22.5331199479.

The spelling of 11441 in words is "eleven thousand, four hundred forty-one", and thus it is an iban number.

Divisors: 1 17 673 11441