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13323121 = 717111959
BaseRepresentation
bin110010110100…
…101101110001
3221001212212221
4302310231301
511402314441
61153321041
7221146630
oct62645561
927055787
1013323121
11757a949
124566181
1329b6306
141aab517
1512828d1
hexcb4b71

13323121 has 8 divisors (see below), whose sum is σ = 16122240. Its totient is φ = 10747968.

The previous prime is 13323119. The next prime is 13323127. The reversal of 13323121 is 12132331.

Adding to 13323121 its reverse (12132331), we get a palindrome (25455452).

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

It is not a de Polignac number, because 13323121 - 21 = 13323119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13323095 and 13323104.

It is not an unprimeable number, because it can be changed into a prime (13323127) 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, 55861 + ... + 56098.

It is an arithmetic number, because the mean of its divisors is an integer number (2015280).

Almost surely, 213323121 is an apocalyptic number.

It is an amenable number.

13323121 is a deficient number, since it is larger than the sum of its proper divisors (2799119).

13323121 is a wasteful number, since it uses less digits than its factorization.

13323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111983.

The product of its digits is 108, while the sum is 16.

The square root of 13323121 is about 3650.0850675019. The cubic root of 13323121 is about 237.0656645362.

The spelling of 13323121 in words is "thirteen million, three hundred twenty-three thousand, one hundred twenty-one".

Divisors: 1 7 17 119 111959 783713 1903303 13323121