128720064
128,720,064 is an even composite number composed of five prime numbers multiplied together.
128720064 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 128720064:
26 × 3 × 11 × 59 × 1033
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 11 × 59 × 1033)See below for interesting mathematical facts about the number 128720064 from the Numbermatics database.
Names of 128720064
- Cardinal: 128720064 can be written as One hundred twenty-eight million, seven hundred twenty thousand and sixty-four.
Scientific notation
- Scientific notation: 1.28720064 × 108
Factors of 128720064
Divisors of 128720064
- Number of divisors d(n): 112
-
Complete list of divisors:
1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 59 64 66 88 96 118 132 176 177 192 236 264 352 354 472 528 649 704 708 944 1033 1056 1298 1416 1888 1947 2066 2112 2596 2832 3099 3776 3894 4132 5192 5664 6198 7788 8264 10384 11328 11363 12396 15576 16528 20768 22726 24792 31152 33056 34089 41536 45452 49584 60947 62304 66112 68178 90904 99168 121894 124608 136356 181808 182841 198336 243788 272712 363616 365682 487576 545424 670417 727232 731364 975152 1090848 1340834 1462728 1950304 2011251 2181696 2681668 2925456 3900608 4022502 5363336 5850912 8045004 10726672 11701824 16090008 21453344 32180016 42906688 64360032 128720064
- Sum of all divisors σ(n): 378195840
- Sum of proper divisors (its aliquot sum) s(n): 249475776
- 128720064 is an abundant number, because the sum of its proper divisors (249475776) is greater than itself. Its abundance is 120755712
Bases of 128720064
- Binary: 1111010110000011100110000002
- Hexadecimal: 0x7AC1CC0
- Base-36: 24MX1C
Squares and roots of 128720064
- 128720064 squared (1287200642) is 16568854876164096
- 128720064 cubed (1287200643) is 2132744060066554511622144
-
The
square root of 128720064 is 11345.4865034515 -
The
cube root of 128720064 is 504.9116781787
Scales and comparisons
How big is 128720064?- 128,720,064 seconds is equal to 4 years, 4 weeks, 5 days, 19 hours, 34 minutes, 24 seconds.
-
To count from 1 to 128,720,064 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 128720064 cubic inches would be around 42.1 feet tall.
Recreational maths with 128720064
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