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Here's some power of 2 numbers.

#PowerNotes
22^1
42^2
82^3
162^4
322^5
642^6
1282^7signed 8-bit integer range (-128 - 127)
2562^8unsigned 8-bit integer range (0 - 255)
5122^9
1,0242^10
2,0482^11
4,0962^12
8,1922^13
16,3842^14
32,7682^15signed 16-bit integer range (-32,768 - 32,767)
65,5362^16unsigned 16-bit integer range (0 - 65,535)
131,0722^17
262,1442^18
524,2882^19
1,048,5762^20
2,097,1522^21
4,194,3042^22
8,388,6082^23
16,777,2162^24float can store integers roughly up to here
33,554,4322^25
67,108,8642^26
134,217,7282^27
268,435,4562^28
536,870,9122^29
1,073,741,8242^30
2,147,483,6482^31signed 32-bit integer range (-2,147,483,648 - 2,147,483,647)
4,294,967,2962^32unsigned 32-bit integer range (0 - 4,294,967,295)
8,589,934,5922^33
17,179,869,1842^34
34,359,738,3682^35
68,719,476,7362^36
137,438,953,4722^37
274,877,906,9442^38
549,755,813,8882^39
1,099,511,627,7762^40
2,199,023,255,5522^41
4,398,046,511,1042^42
8,796,093,022,2082^43
17,592,186,044,4162^44
35,184,372,088,8322^45
70,368,744,177,6642^46
140,737,488,355,3282^47
281,474,976,710,6562^48
562,949,953,421,3122^49
1,125,899,906,842,6242^50
2,251,799,813,685,2482^51
4,503,599,627,370,4962^52
9,007,199,254,740,9922^53 double can store integers roughly up to here
calculator stops working here and I'm too lazy
to make a program to generate these numbers
9,223,372,036,854,775,8082^xxsigned 64-bit integer range
(-9,223,372,036,854,775,808 - 9,223,372,036,854,775,807)
18,446,744,073,709,551,6152^xxunsigned 64-bit integer range
(0 - 18,446,744,073,709,551,615)
340,282,366,920,938,463,463,374,607,431,768,211,4552^xxu128