128129138720
128,129,138,720 is an even composite number composed of seven prime numbers multiplied together.
128129138720 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 128129138720:
25 × 5 × 11 × 17 × 19 × 257 × 877
(2 × 2 × 2 × 2 × 2 × 5 × 11 × 17 × 19 × 257 × 877)See below for interesting mathematical facts about the number 128129138720 from the Numbermatics database.
Names of 128129138720
- Cardinal: 128129138720 can be written as One hundred twenty-eight billion, one hundred twenty-nine million, one hundred thirty-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.2812913872 × 1011
Factors of 128129138720
Divisors of 128129138720
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 4 5 8 10 11 16 17 19 20 22 32 34 38 40 44 55 68 76 80 85 88 95 110 136 152 160 170 176 187 190 209 220 257 272 304 323 340 352 374 380 418 440 514 544 608 646 680 748 760 836 877 880 935 1028 1045 1285 1292 1360 1496 1520 1615 1672 1754 1760 1870 2056 2090 2570 2584 2720 2827 2992 3040 3230 3344 3508 3553 3740 4112 4180 4369 4385 4883 5140 5168 5654 5984 6460 6688 7016 7106 7480 8224 8360 8738 8770 9647 9766 10280 10336 11308 12920 14032 14135 14212 14909 14960 16663 16720 17476 17540 17765 19294 19532 20560 21845 22616 24415 25840 28064 28270 28424 29818 29920 33326 33440 34952 35080 35530 38588 39064 41120 43690 45232 48059 48235 48830 51680 53713 56540 56848 59636 66652 69904 70160 71060 74545 77176 78128 83011 83315 87380 90464 96118 96470 97660 107426 113080 113696 119272 133304 139808 140320 142120 149090 154352 156256 163999 166022 166630 174760 183293 192236 192940 195320 214852 225389 226160 238544 240295 266608 268565 283271 284240 298180 308704 327998 332044 333260 349520 366586 384472 385880 390640 415055 429704 450778 452320 477088 480590 533216 537130 566542 568480 596360 655996 664088 666520 699040 733172 768944 771760 781280 819995 830110 859408 901556 913121 916465 961180 1074260 1126945 1133084 1192720 1311992 1328176 1333040 1416355 1466344 1537888 1543520 1639990 1660220 1718816 1803112 1826242 1832930 1922360 2148520 2253890 2266168 2385440 2479279 2623984 2656352 2666080 2832710 2932688 3115981 3279980 3320440 3606224 3652484 3665860 3831613 3844720 4282391 4297040 4507780 4532336 4565605 4958558 5247968 5665420 5865376 6231962 6559960 6640880 7212448 7304968 7331720 7663226 7689440 8564782 8594080 9015560 9064672 9131210 9917116 11330840 12396395 12463924 13119920 13281760 14609936 14663440 15326452 15579905 17129564 18031120 18262420 19158065 19834232 21411955 22661680 24792790 24927848 26239840 29219872 29326880 30652904 31159810 34259128 36062240 36524840 38316130 39668464 42147743 42823910 45323360 47106301 49585580 49855696 61305808 62319620 68518256 72800647 73049680 76632260 79336928 84295486 85647820 94212602 99171160 99711392 122611616 124639240 137036512 145601294 146099360 153264520 168590972 171295640 188425204 198342320 210738715 235531505 249278480 291202588 306529040 337181944 342591280 364003235 376850408 396684640 421477430 471063010 498556960 582405176 613058080 674363888 685182560 728006470 753700816 800807117 842954860 942126020 1164810352 1348727776 1456012940 1507401632 1601614234 1685909720 1884252040 2329620704 2912025880 3203228468 3371819440 3768504080 4004035585 5824051760 6406456936 6743638880 7537008160 8008071170 11648103520 12812913872 16016142340 25625827744 32032284680 64064569360 128129138720
- Sum of all divisors σ(n): 369904631040
- Sum of proper divisors (its aliquot sum) s(n): 241775492320
- 128129138720 is an abundant number, because the sum of its proper divisors (241775492320) is greater than itself. Its abundance is 113646353600
Bases of 128129138720
- Binary: 11101110101010001011110000000001000002
- Hexadecimal: 0x1DD5178020
- Base-36: 1MV0S468
Squares and roots of 128129138720
- 128129138720 squared (1281291387202) is 16417076189129003238400
- 128129138720 cubed (1281291387203) is 2103505832413719011908282830848000
-
The
square root of 128129138720 is 357951.3077500905 -
The
cube root of 128129138720 is 5041.3784694231
Scales and comparisons
How big is 128129138720?- 128,129,138,720 seconds is equal to 4,074 years, 5 weeks, 5 days, 3 hours, 25 minutes, 20 seconds.
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To count from 1 to 128,129,138,720 would take you about eight thousand, one hundred forty-eight 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 128129138720 cubic inches would be around 420.1 feet tall.
Recreational maths with 128129138720
- 128129138720 backwards is 027831921821
- 128129138720 is a
Harshad number . - The number of decimal digits it has is: 12
- The sum of 128129138720's digits is 44
- More coming soon!
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The information we have on file for 128129138720 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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