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13243424 = 251632539
BaseRepresentation
bin110010100001…
…010000100000
3220220211120012
4302201100200
511342242144
61151504052
7220365365
oct62412040
926824505
1013243424
117525a87
124528028
132988c5c
141a8a46c
151268e9e
hexca1420

13243424 has 24 divisors (see below), whose sum is σ = 26243280. Its totient is φ = 6578496.

The previous prime is 13243409. The next prime is 13243429. The reversal of 13243424 is 42434231.

It is a self number, because there is not a number n which added to its sum of digits gives 13243424.

It is not an unprimeable number, because it can be changed into a prime (13243429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3947 + ... + 6485.

It is an arithmetic number, because the mean of its divisors is an integer number (1093470).

Almost surely, 213243424 is an apocalyptic number.

It is an amenable number.

13243424 is a deficient number, since it is larger than the sum of its proper divisors (12999856).

13243424 is a wasteful number, since it uses less digits than its factorization.

13243424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712 (or 2704 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 13243424 is about 3639.1515494686. The cubic root of 13243424 is about 236.5920212474.

Adding to 13243424 its reverse (42434231), we get a palindrome (55677655).

The spelling of 13243424 in words is "thirteen million, two hundred forty-three thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 32 163 326 652 1304 2539 2608 5078 5216 10156 20312 40624 81248 413857 827714 1655428 3310856 6621712 13243424