Search a number
-
+
12788960 = 255671193
BaseRepresentation
bin110000110010…
…010011100000
3220001202011012
4300302103200
511233221320
61134040052
7213463412
oct60622340
926052135
1012788960
117245598
124349028
13285a142
1419ac9b2
1511c94c5
hexc324e0

12788960 has 48 divisors (see below), whose sum is σ = 30690576. Its totient is φ = 5035008.

The previous prime is 12788959. The next prime is 12788977. The reversal of 12788960 is 6988721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10124 + ... + 11316.

It is an arithmetic number, because the mean of its divisors is an integer number (639387).

Almost surely, 212788960 is an apocalyptic number.

12788960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12788960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15345288).

12788960 is an abundant number, since it is smaller than the sum of its proper divisors (17901616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12788960 is a wasteful number, since it uses less digits than its factorization.

12788960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 12788960 is about 3576.1655442667. The cubic root of 12788960 is about 233.8541473047.

The spelling of 12788960 in words is "twelve million, seven hundred eighty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 67 80 134 160 268 335 536 670 1072 1193 1340 2144 2386 2680 4772 5360 5965 9544 10720 11930 19088 23860 38176 47720 79931 95440 159862 190880 319724 399655 639448 799310 1278896 1598620 2557792 3197240 6394480 12788960