It is: 1000 because they are all consecutive cubed numbers
A single number, such as 12848384 does not make a series.
The next whole number is: 1,000,001
3 * 2 = 6 * 3= 18 *4 =72 *5 = 360
The next number works out as 365
The next whole number is 21,000
10
57
One number does not make a sequence (nor a series).
11 comes next.
The number 7 comes next.
There is no series of number: just one very large number!
10
mcmlx
It is: 4554
15-30 is next
A single number cannot define a sequence, even less a series.
The next number is the sequence 236175969, 48, 12 is 236175861.