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13211313 = 316327017
BaseRepresentation
bin110010011001…
…011010110001
3220212012111220
4302121122301
511340230223
61151055253
7220202643
oct62313261
926765456
1013211313
117503945
124511529
13297745b
141a7c893
15125e6e3
hexc996b1

13211313 has 8 divisors (see below), whose sum is σ = 17723808. Its totient is φ = 8753184.

The previous prime is 13211311. The next prime is 13211323. The reversal of 13211313 is 31311231.

13211313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13211313 - 21 = 13211311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13211292 and 13211301.

It is not an unprimeable number, because it can be changed into a prime (13211311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13020 + ... + 13997.

It is an arithmetic number, because the mean of its divisors is an integer number (2215476).

Almost surely, 213211313 is an apocalyptic number.

It is an amenable number.

13211313 is a deficient number, since it is larger than the sum of its proper divisors (4512495).

13211313 is a wasteful number, since it uses less digits than its factorization.

13211313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27183.

The product of its digits is 54, while the sum is 15.

The square root of 13211313 is about 3634.7369918606. The cubic root of 13211313 is about 236.4006468986.

Adding to 13211313 its reverse (31311231), we get a palindrome (44522544).

The spelling of 13211313 in words is "thirteen million, two hundred eleven thousand, three hundred thirteen".

Divisors: 1 3 163 489 27017 81051 4403771 13211313