128940160
128,940,160 is an even composite number composed of five prime numbers multiplied together.
128940160 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 128940160:
27 × 5 × 31 × 67 × 97
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 31 × 67 × 97)See below for interesting mathematical facts about the number 128940160 from the Numbermatics database.
Names of 128940160
- Cardinal: 128940160 can be written as One hundred twenty-eight million, nine hundred forty thousand, one hundred sixty.
Scientific notation
- Scientific notation: 1.2894016 × 108
Factors of 128940160
Divisors of 128940160
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 4 5 8 10 16 20 31 32 40 62 64 67 80 97 124 128 134 155 160 194 248 268 310 320 335 388 485 496 536 620 640 670 776 970 992 1072 1240 1340 1552 1940 1984 2077 2144 2480 2680 3007 3104 3880 3968 4154 4288 4960 5360 6014 6208 6499 7760 8308 8576 9920 10385 10720 12028 12416 12998 15035 15520 16616 19840 20770 21440 24056 25996 30070 31040 32495 33232 41540 42880 48112 51992 60140 62080 64990 66464 83080 96224 103984 120280 129980 132928 166160 192448 201469 207968 240560 259960 265856 332320 384896 402938 415936 481120 519920 664640 805876 831872 962240 1007345 1039840 1329280 1611752 1924480 2014690 2079680 3223504 4029380 4159360 6447008 8058760 12894016 16117520 25788032 32235040 64470080 128940160
- Sum of all divisors σ(n): 326269440
- Sum of proper divisors (its aliquot sum) s(n): 197329280
- 128940160 is an abundant number, because the sum of its proper divisors (197329280) is greater than itself. Its abundance is 68389120
Bases of 128940160
- Binary: 1111010111101111000100000002
- Hexadecimal: 0x7AF7880
- Base-36: 24RMV4
Squares and roots of 128940160
- 128940160 squared (1289401602) is 16625564860825600
- 128940160 cubed (1289401603) is 2143702993245230596096000
-
The
square root of 128940160 is 11355.1820769197 -
The
cube root of 128940160 is 505.1992939505
Scales and comparisons
How big is 128940160?- 128,940,160 seconds is equal to 4 years, 5 weeks, 1 day, 8 hours, 42 minutes, 40 seconds.
-
To count from 1 to 128,940,160 would take you about six years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 128940160 cubic inches would be around 42.1 feet tall.
Recreational maths with 128940160
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