20987234289840

Names of 20987234289840

• Cardinal: 20987234289840 can be written as Twenty trillion, nine hundred eighty-seven billion, two hundred thirty-four million, two hundred eighty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.098723428984 × 10¹³

Factors of 20987234289840

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 200071

Divisors of 20987234289840

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 17 20 21 24 26 28 30 34 35 39 40 42 48 51 52 56 60 65 68 70 78 80 84 85 91 102 104 105 112 119 120 130 136 140 156 168 170 182 195 204 208 210 221 238 240 255 260 272 273 280 283 312 336 340 357 364 390 408 420 442 455 476 510 520 546 560 566 595 624 663 680 714 728 780 816 840 849 884 910 952 1020 1040 1092 1105 1132 1190 1326 1360 1365 1415 1428 1456 1547 1560 1680 1698 1768 1785 1820 1904 1981 2040 2184 2210 2264 2380 2652 2730 2830 2856 3094 3120 3315 3396 3536 3570 3640 3679 3962 4080 4245 4368 4420 4528 4641 4760 4811 5304 5460 5660 5712 5943 6188 6630 6792 7140 7280 7358 7735 7924 8490 8840 9282 9520 9622 9905 10608 10920 11037 11320 11886 12376 13260 13584 14280 14433 14716 15470 15848 16980 17680 18395 18564 19244 19810 21840 22074 22640 23205 23772 24055 24752 25753 26520 28560 28866 29432 29715 30940 31696 33677 33960 36790 37128 38488 39620 44148 46410 47544 48110 51506 53040 55185 57732 58864 59430 61880 62543 67354 67920 72165 73580 74256 76976 77259 79240 88296 92820 95088 96220 101031 103012 110370 115464 118860 123760 125086 128765 134708 144330 147160 154518 158480 168385 176592 185640 187629 192440 199741 202062 206024 220740 230928 237720 250172 257530 269416 288660 294320 309036 312715 336770 371280 375258 384880 386295 399482 404124 412048 437801 441480 475440 500344 505155 515060 538832 577320 599223 618072 625430 673540 750516 772590 798964 808248 875602 882960 938145 998705 1000688 1010310 1030120 1154640 1198446 1236144 1250860 1313403 1347080 1398187 1501032 1545180 1597928 1616496 1751204 1876290 1997410 2020620 2060240 2189005 2396892 2501720 2596633 2626806 2694160 2796374 2996115 3002064 3090360 3195856 3395597 3502408 3752580 3994820 4041240 4194561 4378010 4793784 5003440 5193266 5253612 5592748 5992230 6180720 6567015 6791194 6990935 7004816 7505160 7789899 7989640 8082480 8389122 8756020 9587568 10186791 10386532 10507224 11185496 11984460 12983165 13134030 13582388 13981870 15010320 15579798 15979280 16778244 16977985 17512040 18176431 20373582 20773064 20972805 21014448 22370992 23769179 23968920 25966330 26268060 27164776 27963740 31159596 33556488 33955970 35024080 36352862 38949495 40747164 41546128 41945610 44142761 47538358 47937840 50933955 51932660 52536120 54329552 54529293 55927480 56526703 62319192 67112976 67911940 71307537 72705724 77898990 81494328 83891220 88285522 90882155 95076716 101867910 103865320 105072240 109058586 111854960 113053406 118845895 124638384 132428283 135823880 142615074 145411448 155797980 162988656 167782440 169580109 176571044 181764310 190153432 203735820 207730640 218117172 220713805 226106812 237691790 264856566 271647760 272646465 282633515 285230148 290822896 308999327 311595960 335564880 339160218 353142088 356537685 363528620 380306864 395686921 407471640 436234344 441427610 452213624 475383580 529713132 545292930 565267030 570460296 617998654 623191920 662141415 678320436 706284176 713075370 727057240 734847139 791373842 814943280 847900545 872468688 882855220 904427248 926997981 950767160 960953951 1059426264 1090585860 1130534060 1140920592 1187060763 1235997308 1324282830 1356640872 1426150740 1454114480 1469694278 1544996635 1582747684 1695801090 1765710440 1853995962 1901534320 1921907902 1978434605 2118852528 2181171720 2204541417 2261068120 2374121526 2471994616 2648565660 2713281744 2852301480 2882861853 2939388556 3089993270 3165495368 3391602180 3531420880 3674235695 3707991924 3843815804 3956869210 4362343440 4409082834 4522136240 4634989905 4748243052 4804769755 4943989232 5143929973 5297131320 5704602960 5765723706 5878777112 5935303815 6179986540 6330990736 6726677657 6783204360 7348471390 7415983848 7687631608 7913738420 8818165668 9269979810 9496486104 9609539510 10287859946 10594262640 11022707085 11531447412 11757554224 11870607630 12359973080 12492401363 13453355314 13566408720 14414309265 14696942780 14831967696 15375263216 15431789919 15827476840 17636331336 18539959620 18992972208 19219079020 20180032971 20575719892 22045414170 23062894824 23741215260 24719946160 24984802726 25719649865 26906710628 28828618530 29393885560 30863579838 31654953680 33633388285 35272662672 37079919240 37477204089 38438158040 40360065942 41151439784 44090828340 46125789648 47482430520 49969605452 51439299730 53813421256 57657237060 58787771120 61727159676 62462006815 67266776570 74159838480 74954408178 76876316080 77158949595 80720131884 82302879568 87446809541 88181656680 94964861040 99939210904 100900164855 102878599460 107626842512 115314474120 123454319352 124924013630 134533553140 149908816356 154317899190 161440263768 174893619082 176363313360 187386020445 199878421808 201800329710 205757198920 230628948240 246908638704 249848027260 262340428623 269067106280 299817632712 308635798380 322880527536 349787238164 374772040890 403600659420 411514397840 437234047705 499696054520 524680857246 538134212560 599635265424 617271596760 699574476328 749544081780 807201318840 874468095410 999392109040 1049361714492 1234543193520 1311702143115 1399148952656 1499088163560 1614402637680 1748936190820 2098723428984 2623404286230 2998176327120 3497872381640 4197446857968 5246808572460 6995744763280 10493617144920 20987234289840
• Sum of all divisors σ(n): 85084646234112
• Sum of proper divisors (its aliquot sum) s(n): 64097411944272
• 20987234289840 is an abundant number, because the sum of its proper divisors (64097411944272) is greater than itself. Its abundance is 43110177654432

Bases of 20987234289840

• Binary: 100110001011001111000101001010000100010110000₂
• Hexadecimal: 0x131678A508B0
• Base-36: 7FTEHF6PC

Squares and roots of 20987234289840

• 20987234289840 squared (20987234289840²) is 440464003136635889127225600
• 20987234289840 cubed (20987234289840³) is 9244121230069398047033685542625467904000
• The square root of 20987234289840 is 4581182.6300465255
• The cube root of 20987234289840 is 27583.6502137533

Scales and comparisons

• 20,987,234,289,840 seconds is equal to 667,329 years, 6 weeks, 6 days, 6 hours, 44 minutes.
• To count from 1 to 20,987,234,289,840 would take you about one million, six hundred sixty-eight thousand, three hundred twenty-two 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 20987234289840 cubic inches would be around 2298.6 feet tall.

Recreational maths with 20987234289840

• 20987234289840 backwards is 04898243278902
• The number of decimal digits it has is: 14
• The sum of 20987234289840's digits is 66
• More coming soon!