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11141 = 13857
BaseRepresentation
bin10101110000101
3120021122
42232011
5324031
6123325
744324
oct25605
916248
1011141
118409
126545
1350c0
1440bb
15347b
hex2b85

11141 has 4 divisors (see below), whose sum is σ = 12012. Its totient is φ = 10272.

The previous prime is 11131. The next prime is 11149. The reversal of 11141 is 14111.

11141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

11141 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14111 = 103137.

It can be written as a sum of positive squares in 2 ways, for example, as 6241 + 4900 = 79^2 + 70^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11141 is a prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11149) 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, 416 + ... + 441.

It is an arithmetic number, because the mean of its divisors is an integer number (3003).

211141 is an apocalyptic number.

It is an amenable number.

11141 is a deficient number, since it is larger than the sum of its proper divisors (871).

11141 is an equidigital number, since it uses as much as digits as its factorization.

11141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870.

The product of its digits is 4, while the sum is 8.

The square root of 11141 is about 105.5509355714. The cubic root of 11141 is about 22.3344223622.

Adding to 11141 its reverse (14111), we get a palindrome (25252).

It can be divided in two parts, 11 and 141, that multiplied together give a palindrome (1551).

The spelling of 11141 in words is "eleven thousand, one hundred forty-one", and thus it is an iban number.

Divisors: 1 13 857 11141