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13223214 = 2326112043
BaseRepresentation
bin110010011100…
…010100101110
3220212210211200
4302130110232
511341120324
61151230330
7220252434
oct62342456
926783750
1013223214
117511884
1245183a6
13297c9b4
141a82d54
151262ec9
hexc9c52e

13223214 has 24 divisors (see below), whose sum is σ = 29122392. Its totient is φ = 4335120.

The previous prime is 13223213. The next prime is 13223237. The reversal of 13223214 is 41232231.

13223214 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4924 + ... + 7119.

It is an arithmetic number, because the mean of its divisors is an integer number (1213433).

Almost surely, 213223214 is an apocalyptic number.

13223214 is an abundant number, since it is smaller than the sum of its proper divisors (15899178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13223214 is a wasteful number, since it uses less digits than its factorization.

13223214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12112 (or 12109 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 13223214 is about 3636.3737431678. The cubic root of 13223214 is about 236.4716103154.

Adding to 13223214 its reverse (41232231), we get a palindrome (54455445).

The spelling of 13223214 in words is "thirteen million, two hundred twenty-three thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 61 122 183 366 549 1098 12043 24086 36129 72258 108387 216774 734623 1469246 2203869 4407738 6611607 13223214