Search a number
-
+
12884944 = 24805309
BaseRepresentation
bin110001001001…
…101111010000
3220020121211011
4301021233100
511244304234
61140100304
7214343302
oct61115720
926217734
1012884944
117300716
124394694
132891a37
1419d5972
1511e7b64
hexc49bd0

12884944 has 10 divisors (see below), whose sum is σ = 24964610. Its totient is φ = 6442464.

The previous prime is 12884941. The next prime is 12884959. The reversal of 12884944 is 44948821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7182400 + 5702544 = 2680^2 + 2388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12884897 and 12884906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12884941) 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 as a sum of consecutive naturals, namely, 402639 + ... + 402670.

It is an arithmetic number, because the mean of its divisors is an integer number (2496461).

Almost surely, 212884944 is an apocalyptic number.

It is an amenable number.

12884944 is a deficient number, since it is larger than the sum of its proper divisors (12079666).

12884944 is an equidigital number, since it uses as much as digits as its factorization.

12884944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805317 (or 805311 counting only the distinct ones).

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

The square root of 12884944 is about 3589.5604187700. The cubic root of 12884944 is about 234.4377322803.

The spelling of 12884944 in words is "twelve million, eight hundred eighty-four thousand, nine hundred forty-four".

Divisors: 1 2 4 8 16 805309 1610618 3221236 6442472 12884944