21087128011387200

Names of 21087128011387200

• Cardinal: 21087128011387200 can be written as Twenty-one quadrillion, eighty-seven trillion, one hundred twenty-eight billion, eleven million, three hundred eighty-seven thousand, two hundred.

Scientific notation

• Scientific notation: 2.10871280113872 × 10¹⁶

Factors of 21087128011387200

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2892134129

Divisors of 21087128011387200

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 31 32 35 40 42 48 49 50 56 60 62 64 70 75 80 84 93 96 98 100 105 112 120 124 140 147 150 155 160 168 175 186 192 196 200 210 217 224 240 245 248 280 294 300 310 320 336 350 372 392 400 420 434 448 465 480 490 496 525 560 588 600 620 651 672 700 735 744 775 784 800 840 868 930 960 980 992 1050 1085 1120 1176 1200 1225 1240 1302 1344 1400 1470 1488 1519 1550 1568 1600 1680 1736 1860 1960 1984 2100 2170 2240 2325 2352 2400 2450 2480 2604 2800 2940 2976 3038 3100 3136 3255 3360 3472 3675 3720 3920 4200 4340 4557 4650 4704 4800 4900 4960 5208 5425 5600 5880 5952 6076 6200 6510 6720 6944 7350 7440 7595 7840 8400 8680 9114 9300 9408 9800 9920 10416 10850 11200 11760 12152 12400 13020 13888 14700 14880 15190 15680 16275 16800 17360 18228 18600 19600 20832 21700 22785 23520 24304 24800 26040 29400 29760 30380 32550 33600 34720 36456 37200 37975 39200 41664 43400 45570 47040 48608 49600 52080 58800 60760 65100 69440 72912 74400 75950 78400 86800 91140 97216 104160 113925 117600 121520 130200 145824 148800 151900 173600 182280 208320 227850 235200 243040 260400 291648 303800 347200 364560 455700 486080 520800 607600 729120 911400 1041600 1215200 1458240 1822800 2430400 3645600 7291200 2892134081 5784268162 8676402243 11568536324 14460670405 17352804486 20244938567 23137072648 28921340810 34705608972 40489877134 43382011215 46274145296 57842681620 60734815701 69411217944 72303352025 80979754268 86764022430 89656156511 92548290592 101224692835 115685363240 121469631402 138822435888 141714569969 144606704050 161959508536 173528044860 179312313022 185096581184 202449385670 216910056075 231370726480 242939262804 268968469533 277644871776 283429139938 289213408100 303674078505 323919017072 347056089720 358624626044 404898771340 425143709907 433820112150 448280782555 462741452960 485878525608 506123464175 537936939066 555289743552 566858279876 578426816200 607348157010 627593095577 647838034144 694112179440 708572849845 717249252088 809797542680 850287419814 867640224300 896561565110 925482905920 971757051216 1012246928350 1075873878132 1133716559752 1156853632400 1214696314020 1255186191154 1295676068288 1344842347665 1388224358880 1417145699690 1434498504176 1518370392525 1619595085360 1700574839628 1735280448600 1793123130220 1882779286731 1943514102432 2024493856700 2125718549535 2151747756264 2241403912775 2267433119504 2313707264800 2429392628040 2510372382308 2689684695330 2776448717760 2834291399380 2868997008352 3036740785050 3137965477885 3239190170720 3401149679256 3470560897200 3542864249225 3586246260440 3765558573462 3887028204864 4048987713400 4251437099070 4303495512528 4393151669039 4482807825550 4534866239008 4627414529600 4858785256080 5020744764616 5379369390660 5668582798760 5737994016704 6073481570100 6275930955770 6478380341440 6724211738325 6802299358512 6941121794400 7085728498450 7172492520880 7531117146924 8097975426800 8502874198140 8606991025056 8786303338078 8965615651100 9069732478016 9413896433655 9717570512160 10041489529232 10628592747675 10758738781320 11337165597520 12146963140200 12551861911540 13179455007117 13448423476650 13604598717024 13882243588800 14171456996900 14344985041760 15062234293848 15689827389425 16195950853600 17005748396280 17213982050112 17572606676156 17931231302200 18827792867310 19435141024320 20082979058464 21257185495350 21517477562640 21965758345195 22674331195040 24293926280400 25103723823080 26358910014234 26896846953300 27209197434048 28342913993800 28689970083520 30124468587696 31379654778850 32391901707200 34011496792560 35145213352312 35862462604400 37655585734620 40165958116928 42514370990700 43034955125280 43931516690390 45348662390080 47069482168275 48587852560800 50207447646160 52717820028468 53793693906600 56685827987600 60248937175392 62759309557700 65897275035585 68022993585120 70290426704624 71724925208800 75311171469240 85028741981400 86069910250560 87863033380780 94138964336550 97175705121600 100414895292320 105435640056936 107587387813200 109828791725975 113371655975200 120497874350784 125518619115400 131794550071170 136045987170240 140580853409248 143449850417600 150622342938480 170057483962800 175726066761560 188277928673100 200829790584640 210871280113872 215174775626400 219657583451950 226743311950400 251037238230800 263589100142340 281161706818496 301244685876960 329486375177925 340114967925600 351452133523120 376555857346200 421742560227744 430349551252800 439315166903900 502074476461600 527178200284680 602489371753920 658972750355850 680229935851200 702904267046240 753111714692400 843485120455488 878630333807800 1004148952923200 1054356400569360 1317945500711700 1405808534092480 1506223429384800 1757260667615600 2108712801138720 2635891001423400 3012446858769600 3514521335231200 4217425602277440 5271782002846800 7029042670462400 10543564005693600 21087128011387200
• Sum of all divisors σ(n): 83074677402564864
• Sum of proper divisors (its aliquot sum) s(n): 61987549391177664
• 21087128011387200 is an abundant number, because the sum of its proper divisors (61987549391177664) is greater than itself. Its abundance is 40900421379790464

Bases of 21087128011387200

• Binary: 1001010111010101010000110010110011100111011000101000000₂
• Hexadecimal: 0x4AEAA19673B140
• Base-36: 5RMRGVGGVUO

Squares and roots of 21087128011387200

• 21087128011387200 squared (21087128011387200²) is 444666967768630688052868323840000
• 21087128011387200 cubed (21087128011387200³) is 9376749271772501399073856482955153697230848000000
• The square root of 21087128011387200 is 145214076.4918718201
• The cube root of 21087128011387200 is 276273.4460508555

Scales and comparisons

• 21,087,128,011,387,200 seconds is equal to 670,505,443 years, 51 weeks, 4 days, 6 hours, 40 minutes.
• To count from 1 to 21,087,128,011,387,200 would take you about two billion, eleven million, five hundred sixteen thousand, three hundred thirty-one 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 21087128011387200 cubic inches would be around 23022.8 feet tall.

Recreational maths with 21087128011387200

• 21087128011387200 backwards is 00278311082178012
• The number of decimal digits it has is: 17
• The sum of 21087128011387200's digits is 51
• More coming soon!