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13213323 = 3210713721
BaseRepresentation
bin110010011001…
…111010001011
3220212022021100
4302121322023
511340311243
61151112443
7220211544
oct62317213
926768240
1013213323
117505402
124512723
132978346
141a7d4cb
1512600d3
hexc99e8b

13213323 has 12 divisors (see below), whose sum is σ = 19265688. Its totient is φ = 8725920.

The previous prime is 13213297. The next prime is 13213327. The reversal of 13213323 is 32331231.

It is not a de Polignac number, because 13213323 - 26 = 13213259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13213296 and 13213305.

It is not an unprimeable number, because it can be changed into a prime (13213327) 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 11 ways as a sum of consecutive naturals, for example, 5898 + ... + 7823.

It is an arithmetic number, because the mean of its divisors is an integer number (1605474).

Almost surely, 213213323 is an apocalyptic number.

13213323 is a deficient number, since it is larger than the sum of its proper divisors (6052365).

13213323 is a wasteful number, since it uses less digits than its factorization.

13213323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13834 (or 13831 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 13213323 is about 3635.0134800300. The cubic root of 13213323 is about 236.4126351394.

Adding to 13213323 its reverse (32331231), we get a palindrome (45544554).

The spelling of 13213323 in words is "thirteen million, two hundred thirteen thousand, three hundred twenty-three".

Divisors: 1 3 9 107 321 963 13721 41163 123489 1468147 4404441 13213323