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13223361 = 341107507
BaseRepresentation
bin110010011100…
…010111000001
3220212211001010
4302130113001
511341121421
61151231133
7220253034
oct62342701
926784033
1013223361
1175119a8
1245184a9
13297ca98
141a8301b
151263076
hexc9c5c1

13223361 has 8 divisors (see below), whose sum is σ = 18061344. Its totient is φ = 8600480.

The previous prime is 13223359. The next prime is 13223369. The reversal of 13223361 is 16332231.

13223361 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13223361 - 21 = 13223359 is a prime.

It is a super-2 number, since 2×132233612 = 349714552272642, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13223369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53631 + ... + 53876.

It is an arithmetic number, because the mean of its divisors is an integer number (2257668).

Almost surely, 213223361 is an apocalyptic number.

It is an amenable number.

13223361 is a deficient number, since it is larger than the sum of its proper divisors (4837983).

13223361 is a wasteful number, since it uses less digits than its factorization.

13223361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107551.

The product of its digits is 648, while the sum is 21.

The square root of 13223361 is about 3636.3939555554. The cubic root of 13223361 is about 236.4724865824.

Adding to 13223361 its reverse (16332231), we get a palindrome (29555592).

The spelling of 13223361 in words is "thirteen million, two hundred twenty-three thousand, three hundred sixty-one".

Divisors: 1 3 41 123 107507 322521 4407787 13223361