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13310431 = 19236871
BaseRepresentation
bin110010110001…
…100111011111
3221001020110221
4302301213133
511401413211
61153142211
7221064631
oct62614737
927036427
1013310431
117571362
12455a967
1329b05c4
141aa6a51
15127dc71
hexcb19df

13310431 has 6 divisors (see below), whose sum is σ = 14048232. Its totient is φ = 12609540.

The previous prime is 13310411. The next prime is 13310443. The reversal of 13310431 is 13401331.

13310431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13310431 - 213 = 13302239 is a prime.

It is a super-2 number, since 2×133104312 = 354335146811522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13310411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18075 + ... + 18796.

It is an arithmetic number, because the mean of its divisors is an integer number (2341372).

Almost surely, 213310431 is an apocalyptic number.

13310431 is a deficient number, since it is larger than the sum of its proper divisors (737801).

13310431 is an equidigital number, since it uses as much as digits as its factorization.

13310431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36909 (or 36890 counting only the distinct ones).

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

The square root of 13310431 is about 3648.3463377262. The cubic root of 13310431 is about 236.9903738961.

Adding to 13310431 its reverse (13401331), we get a palindrome (26711762).

The spelling of 13310431 in words is "thirteen million, three hundred ten thousand, four hundred thirty-one".

Divisors: 1 19 361 36871 700549 13310431