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13311343 = 19700597
BaseRepresentation
bin110010110001…
…110101101111
3221001021201201
4302301311233
511401430333
61153150331
7221100403
oct62616557
927037651
1013311343
117572011
12455b3a7
1329b0b46
141aa7103
15127e17d
hexcb1d6f

13311343 has 4 divisors (see below), whose sum is σ = 14011960. Its totient is φ = 12610728.

The previous prime is 13311317. The next prime is 13311349. The reversal of 13311343 is 34311331.

13311343 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34311331 = 231491797.

It is a cyclic number.

It is not a de Polignac number, because 13311343 - 29 = 13310831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 700597 = 13311343 / (1 + 3 + 3 + 1 + 1 + 3 + 4 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13311343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350280 + ... + 350317.

It is an arithmetic number, because the mean of its divisors is an integer number (3502990).

Almost surely, 213311343 is an apocalyptic number.

13311343 is a deficient number, since it is larger than the sum of its proper divisors (700617).

13311343 is an equidigital number, since it uses as much as digits as its factorization.

13311343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700616.

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

The square root of 13311343 is about 3648.4713237190. The cubic root of 13311343 is about 236.9957864503.

Adding to 13311343 its reverse (34311331), we get a palindrome (47622674).

It can be divided in two parts, 133 and 11343, that added together give a triangular number (11476 = T151).

The spelling of 13311343 in words is "thirteen million, three hundred eleven thousand, three hundred forty-three".

Divisors: 1 19 700597 13311343