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12620324 = 2217185593
BaseRepresentation
bin110000001001…
…001000100100
3212202011211102
4300021020210
511212322244
61130255232
7212161643
oct60111044
925664742
1012620324
11713a922
124287518
1327cb462
14196735a
15119454e
hexc09224

12620324 has 12 divisors (see below), whose sum is σ = 23384844. Its totient is φ = 5938944.

The previous prime is 12620323. The next prime is 12620339. The reversal of 12620324 is 42302621.

It can be written as a sum of positive squares in 2 ways, for example, as 5953600 + 6666724 = 2440^2 + 2582^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12620296 and 12620305.

It is not an unprimeable number, because it can be changed into a prime (12620323) 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, 92729 + ... + 92864.

It is an arithmetic number, because the mean of its divisors is an integer number (1948737).

Almost surely, 212620324 is an apocalyptic number.

It is an amenable number.

12620324 is a deficient number, since it is larger than the sum of its proper divisors (10764520).

12620324 is a wasteful number, since it uses less digits than its factorization.

12620324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185614 (or 185612 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 12620324 is about 3552.5095355256. The cubic root of 12620324 is about 232.8217244127.

Adding to 12620324 its reverse (42302621), we get a palindrome (54922945).

The spelling of 12620324 in words is "twelve million, six hundred twenty thousand, three hundred twenty-four".

Divisors: 1 2 4 17 34 68 185593 371186 742372 3155081 6310162 12620324