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13244217 = 37630677
BaseRepresentation
bin110010100001…
…011100111001
3220220212122120
4302201130321
511342303332
61151511453
7220400610
oct62413471
926825576
1013244217
117526638
124528589
13298941c
141a8a877
15126932c
hexca1739

13244217 has 8 divisors (see below), whose sum is σ = 20181696. Its totient is φ = 7568112.

The previous prime is 13244183. The next prime is 13244219. The reversal of 13244217 is 71244231.

It is a happy number.

13244217 is digitally balanced in base 2 and base 4, because in such bases 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 13244217 - 28 = 13243961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13244219) 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, 315318 + ... + 315359.

It is an arithmetic number, because the mean of its divisors is an integer number (2522712).

Almost surely, 213244217 is an apocalyptic number.

It is an amenable number.

13244217 is a deficient number, since it is larger than the sum of its proper divisors (6937479).

13244217 is an equidigital number, since it uses as much as digits as its factorization.

13244217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630687.

The product of its digits is 1344, while the sum is 24.

The square root of 13244217 is about 3639.2605018053. The cubic root of 13244217 is about 236.5967434332.

Adding to 13244217 its reverse (71244231), we get a palindrome (84488448).

The spelling of 13244217 in words is "thirteen million, two hundred forty-four thousand, two hundred seventeen".

Divisors: 1 3 7 21 630677 1892031 4414739 13244217