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13231310 = 251323131
BaseRepresentation
bin110010011110…
…010011001110
3220220012221112
4302132103032
511341400220
61151332022
7220315151
oct62362316
926805845
1013231310
117517974
124521012
1329835a1
141a85c98
1512655c5
hexc9e4ce

13231310 has 8 divisors (see below), whose sum is σ = 23816376. Its totient is φ = 5292520.

The previous prime is 13231297. The next prime is 13231313. The reversal of 13231310 is 1313231.

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

It is a super-2 number, since 2×132313102 = 350135128632200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231313) 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, 661556 + ... + 661575.

It is an arithmetic number, because the mean of its divisors is an integer number (2977047).

Almost surely, 213231310 is an apocalyptic number.

13231310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13231310 is a deficient number, since it is larger than the sum of its proper divisors (10585066).

13231310 is a wasteful number, since it uses less digits than its factorization.

13231310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323138.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 13231310 is about 3637.4867697354. The cubic root of 13231310 is about 236.5198609039.

Adding to 13231310 its reverse (1313231), we get a palindrome (14544541).

The spelling of 13231310 in words is "thirteen million, two hundred thirty-one thousand, three hundred ten".

Divisors: 1 2 5 10 1323131 2646262 6615655 13231310