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232213 = 733181
BaseRepresentation
bin111000101100010101
3102210112111
4320230111
524412323
64551021
71655002
oct705425
9383474
10232213
11149513
12b2471
1381907
14608a9
1548c0d
hex38b15

232213 has 4 divisors (see below), whose sum is σ = 235468. Its totient is φ = 228960.

The previous prime is 232207. The next prime is 232217. The reversal of 232213 is 312232.

It is a happy number.

232213 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 66564 + 165649 = 258^2 + 407^2 .

It is a cyclic number.

It is not a de Polignac number, because 232213 - 29 = 231701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232193 and 232202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232217) 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, 1518 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (58867).

2232213 is an apocalyptic number.

It is an amenable number.

232213 is a deficient number, since it is larger than the sum of its proper divisors (3255).

232213 is an equidigital number, since it uses as much as digits as its factorization.

232213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254.

The product of its digits is 72, while the sum is 13.

The square root of 232213 is about 481.8848410149. The cubic root of 232213 is about 61.4651354596.

Adding to 232213 its reverse (312232), we get a palindrome (544445).

The spelling of 232213 in words is "two hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 73 3181 232213