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12871246 = 219338717
BaseRepresentation
bin110001000110…
…011001001110
3220012221000211
4301012121032
511243334441
61135513034
7214255333
oct61063116
926187024
1012871246
1172a13a3
12438877a
13288872b
1419d098a
1511e3a81
hexc4664e

12871246 has 8 divisors (see below), whose sum is σ = 20323080. Its totient is φ = 6096888.

The previous prime is 12871241. The next prime is 12871247. The reversal of 12871246 is 64217821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12871241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169321 + ... + 169396.

It is an arithmetic number, because the mean of its divisors is an integer number (2540385).

Almost surely, 212871246 is an apocalyptic number.

12871246 is a deficient number, since it is larger than the sum of its proper divisors (7451834).

12871246 is a wasteful number, since it uses less digits than its factorization.

12871246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338738.

The product of its digits is 5376, while the sum is 31.

The square root of 12871246 is about 3587.6518783182. The cubic root of 12871246 is about 234.3546258082.

The spelling of 12871246 in words is "twelve million, eight hundred seventy-one thousand, two hundred forty-six".

Divisors: 1 2 19 38 338717 677434 6435623 12871246