Powers of Two for Csound
exp
result
  exp result
1 2   21 2,097,152
2 4   22 4,194,304
3 8   23 8,388,608
4 16   24 16,777,216
5 32   25 33,554,432
6 64   26 67,108,864
7 128   27 134,217,728
8 256   28 268,435,456
9 512   29 536,870,912
10 1,024   30 1,073,741,824
11 2,048   31 2,147,483,648
12 4,096   32 4,294,967,296
13 8,192   33 8,589,934,592
14 16,384   34 17,179,869,184
15 32,768   35 34,359,738,368
16 65,536   36 68,719,476,736
17 131,072   37 137,438,953,472
18 262,144   38 274,877,906,944
19 524,288   39 549,755,813,888
20 1,048,576   40 1,099,511,627,776