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11841 = 33947
BaseRepresentation
bin10111001000001
3121020120
42321001
5334331
6130453
746344
oct27101
917216
1011841
118995
126a29
13550b
14445b
153796
hex2e41

11841 has 4 divisors (see below), whose sum is σ = 15792. Its totient is φ = 7892.

The previous prime is 11839. The next prime is 11863. The reversal of 11841 is 14811.

11841 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14811 = 34937.

It is a cyclic number.

It is not a de Polignac number, because 11841 - 21 = 11839 is a prime.

It is a D-number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 11841.

It is not an unprimeable number, because it can be changed into a prime (11801) 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, 1971 + ... + 1976.

It is an arithmetic number, because the mean of its divisors is an integer number (3948).

211841 is an apocalyptic number.

It is an amenable number.

11841 is a deficient number, since it is larger than the sum of its proper divisors (3951).

11841 is an equidigital number, since it uses as much as digits as its factorization.

11841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950.

The product of its digits is 32, while the sum is 15.

The square root of 11841 is about 108.8163590643. The cubic root of 11841 is about 22.7927185120.

The spelling of 11841 in words is "eleven thousand, eight hundred forty-one".

Divisors: 1 3 3947 11841