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12744029 = 1812389
BaseRepresentation
bin110000100111…
…010101011101
3212222110112002
4300213111131
511230302104
61133052045
7213215414
oct60472535
925873462
1012744029
117214861
124327025
13284285c
14199a47b
1511bb01e
hexc2755d

12744029 has 6 divisors (see below), whose sum is σ = 12847770. Its totient is φ = 12641040.

The previous prime is 12744019. The next prime is 12744049. The reversal of 12744029 is 92044721.

It can be written as a sum of positive squares in 3 ways, for example, as 2181529 + 10562500 = 1477^2 + 3250^2 .

It is not a de Polignac number, because 12744029 - 216 = 12678493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12743992 and 12744010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12744019) 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 5 ways as a sum of consecutive naturals, for example, 32567 + ... + 32955.

It is an arithmetic number, because the mean of its divisors is an integer number (2141295).

Almost surely, 212744029 is an apocalyptic number.

It is an amenable number.

12744029 is a deficient number, since it is larger than the sum of its proper divisors (103741).

12744029 is an frugal number, since it uses more digits than its factorization.

12744029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12744029 is about 3569.8780091202. The cubic root of 12744029 is about 233.5799621288.

The spelling of 12744029 in words is "twelve million, seven hundred forty-four thousand, twenty-nine".

Divisors: 1 181 389 32761 70409 12744029