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12543152 = 247310739
BaseRepresentation
bin101111110110…
…010010110000
3212121020222012
4233312102300
511202340102
61124502052
7211420646
oct57662260
925536865
1012543152
117097946
12424a928
1327a22ab
141947196
15117b752
hexbf64b0

12543152 has 20 divisors (see below), whose sum is σ = 24637560. Its totient is φ = 6185088.

The previous prime is 12543151. The next prime is 12543191. The reversal of 12543152 is 25134521.

It is not an unprimeable number, because it can be changed into a prime (12543151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4202 + ... + 6537.

It is an arithmetic number, because the mean of its divisors is an integer number (1231878).

Almost surely, 212543152 is an apocalyptic number.

It is an amenable number.

12543152 is a deficient number, since it is larger than the sum of its proper divisors (12094408).

12543152 is a wasteful number, since it uses less digits than its factorization.

12543152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10820 (or 10814 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 12543152 is about 3541.6312625681. The cubic root of 12543152 is about 232.3461934143.

Adding to 12543152 its reverse (25134521), we get a palindrome (37677673).

The spelling of 12543152 in words is "twelve million, five hundred forty-three thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 73 146 292 584 1168 10739 21478 42956 85912 171824 783947 1567894 3135788 6271576 12543152