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BaseRepresentation
bin10111100001111
3121112012
42330033
5341142
6131435
750060
oct27417
917465
1012047
119062
126b7b
135639
144567
153882
hex2f0f

12047 has 4 divisors (see below), whose sum is σ = 13776. Its totient is φ = 10320.

The previous prime is 12043. The next prime is 12049. The reversal of 12047 is 74021.

It is a happy number.

12047 is an esthetic number in base 14, because in such base its adjacent digits differ by 1.

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 12047 - 22 = 12043 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12041) 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, 854 + ... + 867.

It is an arithmetic number, because the mean of its divisors is an integer number (3444).

212047 is an apocalyptic number.

12047 is a deficient number, since it is larger than the sum of its proper divisors (1729).

12047 is an equidigital number, since it uses as much as digits as its factorization.

12047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 12047 is about 109.7588265243. The cubic root of 12047 is about 22.9241356738.

Adding to 12047 its reverse (74021), we get a palindrome (86068).

It can be divided in two parts, 1 and 2047, that added together give a 11-th power (2048 = 211).

The spelling of 12047 in words is "twelve thousand, forty-seven", and thus it is an iban number.

Divisors: 1 7 1721 12047