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13223341 = 53249497
BaseRepresentation
bin110010011100…
…010110101101
3220212211000101
4302130112231
511341121331
61151231101
7220253005
oct62342655
926784011
1013223341
11751198a
124518491
13297ca81
141a83005
151263061
hexc9c5ad

13223341 has 4 divisors (see below), whose sum is σ = 13472892. Its totient is φ = 12973792.

The previous prime is 13223339. The next prime is 13223347. The reversal of 13223341 is 14332231.

13223341 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 an emirpimes, since its reverse is a distinct semiprime: 14332231 = 19877213.

It can be written as a sum of positive squares in 2 ways, for example, as 11249316 + 1974025 = 3354^2 + 1405^2 .

It is a cyclic number.

It is not a de Polignac number, because 13223341 - 21 = 13223339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124696 + ... + 124801.

It is an arithmetic number, because the mean of its divisors is an integer number (3368223).

Almost surely, 213223341 is an apocalyptic number.

It is an amenable number.

13223341 is a deficient number, since it is larger than the sum of its proper divisors (249551).

13223341 is an equidigital number, since it uses as much as digits as its factorization.

13223341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249550.

The product of its digits is 432, while the sum is 19.

The square root of 13223341 is about 3636.3912055773. The cubic root of 13223341 is about 236.4723673627.

Adding to 13223341 its reverse (14332231), we get a palindrome (27555572).

The spelling of 13223341 in words is "thirteen million, two hundred twenty-three thousand, three hundred forty-one".

Divisors: 1 53 249497 13223341