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13323449 = 73229797
BaseRepresentation
bin110010110100…
…110010111001
3221001220100002
4302310302321
511402322244
61153322345
7221150606
oct62646271
927056302
1013323449
117580117
1245663b5
1329b64c9
141aab6ad
151282a4e
hexcb4cb9

13323449 has 8 divisors (see below), whose sum is σ = 13581960. Its totient is φ = 13067136.

The previous prime is 13323433. The next prime is 13323451. The reversal of 13323449 is 94432331.

It can be written as a sum of positive squares in 4 ways, for example, as 5257849 + 8065600 = 2293^2 + 2840^2 .

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 13323449 - 24 = 13323433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13323649) 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 7 ways as a sum of consecutive naturals, for example, 16319 + ... + 17115.

It is an arithmetic number, because the mean of its divisors is an integer number (1697745).

Almost surely, 213323449 is an apocalyptic number.

It is an amenable number.

13323449 is a deficient number, since it is larger than the sum of its proper divisors (258511).

13323449 is an equidigital number, since it uses as much as digits as its factorization.

13323449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099.

The product of its digits is 7776, while the sum is 29.

The square root of 13323449 is about 3650.1299976850. The cubic root of 13323449 is about 237.0676099488.

The spelling of 13323449 in words is "thirteen million, three hundred twenty-three thousand, four hundred forty-nine".

Divisors: 1 73 229 797 16717 58181 182513 13323449