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12884836 = 2212292621
BaseRepresentation
bin110001001001…
…101101100100
3220020121200011
4301021231210
511244303321
61140100004
7214343056
oct61115544
926217604
1012884836
117300628
124394604
132891983
1419d58d6
1511e7ae1
hexc49b64

12884836 has 12 divisors (see below), whose sum is σ = 22575420. Its totient is φ = 6434720.

The previous prime is 12884819. The next prime is 12884849. The reversal of 12884836 is 63848821.

It can be written as a sum of positive squares in 2 ways, for example, as 11943936 + 940900 = 3456^2 + 970^2 .

It is an unprimeable number.

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, 3606 + ... + 6226.

It is an arithmetic number, because the mean of its divisors is an integer number (1881285).

Almost surely, 212884836 is an apocalyptic number.

It is an amenable number.

12884836 is a deficient number, since it is larger than the sum of its proper divisors (9690584).

12884836 is a wasteful number, since it uses less digits than its factorization.

12884836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854 (or 3852 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 12884836 is about 3589.5453751137. The cubic root of 12884836 is about 234.4370772692.

The spelling of 12884836 in words is "twelve million, eight hundred eighty-four thousand, eight hundred thirty-six".

Divisors: 1 2 4 1229 2458 2621 4916 5242 10484 3221209 6442418 12884836