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13026331 = 372331511
BaseRepresentation
bin110001101100…
…010000011011
3220111210202201
4301230100123
511313320311
61143111031
7215502433
oct61542033
926453681
1013026331
11739796a
124442477
1329111b6
141a312c3
1512249c1
hexc6c41b

13026331 has 8 divisors (see below), whose sum is σ = 13444704. Its totient is φ = 12611520.

The previous prime is 13026323. The next prime is 13026337. The reversal of 13026331 is 13362031.

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 13026331 - 23 = 13026323 is a prime.

It is a super-2 number, since 2×130263312 = 339370598643122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13026299 and 13026308.

It is not an unprimeable number, because it can be changed into a prime (13026337) 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, 7866 + ... + 9376.

It is an arithmetic number, because the mean of its divisors is an integer number (1680588).

Almost surely, 213026331 is an apocalyptic number.

13026331 is a deficient number, since it is larger than the sum of its proper divisors (418373).

13026331 is a wasteful number, since it uses less digits than its factorization.

13026331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 13026331 is about 3609.2008810816. The cubic root of 13026331 is about 235.2921129768.

Adding to 13026331 its reverse (13362031), we get a palindrome (26388362).

The spelling of 13026331 in words is "thirteen million, twenty-six thousand, three hundred thirty-one".

Divisors: 1 37 233 1511 8621 55907 352063 13026331