Search a number
13211 = 111201
BaseRepresentation
bin11001110011011
3200010022
43032123
5410321
6141055
753342
oct31633
920108
1013211
119a20
12778b
136023
144b59
153dab
hex339b

13211 has 4 divisors (see below), whose sum is σ = 14424. Its totient is φ = 12000.

The previous prime is 13187. The next prime is 13217. The reversal of 13211 is 11231.

Adding to 13211 its reverse (11231), we get a palindrome (24442).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11231 = 111021.

It is a cyclic number.

It is not a de Polignac number, because 13211 - 26 = 13147 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12 and base 16.

It is not an unprimeable number, because it can be changed into a prime (13217) 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, 590 + ... + 611.

It is an arithmetic number, because the mean of its divisors is an integer number (3606).

213211 is an apocalyptic number.

13211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13211 is a deficient number, since it is larger than the sum of its proper divisors (1213).

13211 is a wasteful number, since it uses less digits than its factorization.

13211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its digits is 6, while the sum is 8.

The square root of 13211 is about 114.9391143171. The cubic root of 13211 is about 23.6398779964.

The spelling of 13211 in words is "thirteen thousand, two hundred eleven".

Divisors: 1 11 1201 13211