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12513328 = 24782083
BaseRepresentation
bin101111101111…
…000000110000
3212112202001121
4233233000300
511200411303
61124112024
7211235002
oct57570060
925482047
1012513328
1170774a3
124235614
132791849
14193a372
1511729bd
hexbef030

12513328 has 10 divisors (see below), whose sum is σ = 24244604. Its totient is φ = 6256656.

The previous prime is 12513317. The next prime is 12513331. The reversal of 12513328 is 82331521.

12513328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391026 + ... + 391057.

Almost surely, 212513328 is an apocalyptic number.

It is an amenable number.

12513328 is a deficient number, since it is larger than the sum of its proper divisors (11731276).

12513328 is an equidigital number, since it uses as much as digits as its factorization.

12513328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782091 (or 782085 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 12513328 is about 3537.4182676070. The cubic root of 12513328 is about 232.1618965100.

Adding to 12513328 its reverse (82331521), we get a palindrome (94844849).

The spelling of 12513328 in words is "twelve million, five hundred thirteen thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 16 782083 1564166 3128332 6256664 12513328