128427144720
128,427,144,720 is an even composite number composed of seven prime numbers multiplied together.
128427144720 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 128427144720:
24 × 3 × 5 × 7 × 31 × 127 × 19417
(2 × 2 × 2 × 2 × 3 × 5 × 7 × 31 × 127 × 19417)See below for interesting mathematical facts about the number 128427144720 from the Numbermatics database.
Names of 128427144720
- Cardinal: 128427144720 can be written as One hundred twenty-eight billion, four hundred twenty-seven million, one hundred forty-four thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.2842714472 × 1011
Factors of 128427144720
Divisors of 128427144720
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 31 35 40 42 48 56 60 62 70 80 84 93 105 112 120 124 127 140 155 168 186 210 217 240 248 254 280 310 336 372 381 420 434 465 496 508 560 620 635 651 744 762 840 868 889 930 1016 1085 1240 1270 1302 1488 1524 1680 1736 1778 1860 1905 2032 2170 2480 2540 2604 2667 3048 3255 3472 3556 3720 3810 3937 4340 4445 5080 5208 5334 6096 6510 7112 7440 7620 7874 8680 8890 10160 10416 10668 11811 13020 13335 14224 15240 15748 17360 17780 19417 19685 21336 23622 26040 26670 27559 30480 31496 35560 38834 39370 42672 47244 52080 53340 55118 58251 59055 62992 71120 77668 78740 82677 94488 97085 106680 110236 116502 118110 135919 137795 155336 157480 165354 188976 194170 213360 220472 233004 236220 271838 275590 291255 310672 314960 330708 388340 407757 413385 440944 466008 472440 543676 551180 582510 601927 661416 679595 776680 815514 826770 932016 944880 1087352 1102360 1165020 1203854 1322832 1359190 1553360 1631028 1653540 1805781 2038785 2174704 2204720 2330040 2407708 2465959 2718380 3009635 3262056 3307080 3611562 4077570 4213489 4660080 4815416 4931918 5436760 6019270 6524112 6614160 7223124 7397877 8155140 8426978 9028905 9630832 9863836 10873520 12038540 12329795 12640467 14446248 14795754 16310280 16853956 17261713 18057810 19727672 21067445 24077080 24659590 25280934 28892496 29591508 32620560 33707912 34523426 36115620 36989385 39455344 42134890 48154160 49319180 50561868 51785139 59183016 63202335 67415824 69046852 72231240 73978770 76444729 84269780 86308565 98638360 101123736 103570278 118366032 126404670 138093704 144462480 147957540 152889458 168539560 172617130 197276720 202247472 207140556 229334187 252809340 258925695 276187408 295915080 305778916 337079120 345234260 382223645 414281112 458668374 505618680 517851390 535113103 591830160 611557832 690468520 764447290 828562224 917336748 1011237360 1035702780 1070226206 1146670935 1223115664 1380937040 1528894580 1605339309 1834673496 2071405560 2140452412 2293341870 2675565515 3057789160 3210678618 3669346992 4142811120 4280904824 4586683740 5351131030 6115578320 6421357236 8026696545 8561809648 9173367480 10702262060 12842714472 16053393090 18346734960 21404524120 25685428944 32106786180 42809048240 64213572360 128427144720
- Sum of all divisors σ(n): 473399033856
- Sum of proper divisors (its aliquot sum) s(n): 344971889136
- 128427144720 is an abundant number, because the sum of its proper divisors (344971889136) is greater than itself. Its abundance is 216544744416
Bases of 128427144720
- Binary: 11101111001101101101010110110000100002
- Hexadecimal: 0x1DE6DAB610
- Base-36: 1MZY7F2O
Squares and roots of 128427144720
- 128427144720 squared (1284271447202) is 16493531500931823878400
- 128427144720 cubed (1284271447203) is 2118217157014050160084828482048000
-
The
square root of 128427144720 is 358367.3321049227 -
The
cube root of 128427144720 is 5045.2838984995
Scales and comparisons
How big is 128427144720?- 128,427,144,720 seconds is equal to 4,083 years, 30 weeks, 3 days, 6 hours, 52 minutes.
-
To count from 1 to 128,427,144,720 would take you about eight thousand, one hundred sixty-seven 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 128427144720 cubic inches would be around 420.4 feet tall.
Recreational maths with 128427144720
- 128427144720 backwards is 027441724821
- 128427144720 is a
Harshad number . - The number of decimal digits it has is: 12
- The sum of 128427144720's digits is 42
- More coming soon!
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