21211107793920

Names of 21211107793920

• Cardinal: 21211107793920 can be written as Twenty-one trillion, two hundred eleven billion, one hundred seven million, seven hundred ninety-three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.121110779392 × 10¹³

Factors of 21211107793920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 140918

Divisors of 21211107793920

• Number of divisors d(n): 792
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 72 80 81 88 90 96 99 108 110 120 121 128 132 135 144 160 162 165 176 180 192 198 216 220 240 242 243 256 264 270 288 297 320 324 330 352 360 363 384 396 405 432 440 480 484 486 495 512 528 540 576 594 605 640 648 660 704 720 726 768 792 810 864 880 891 960 968 972 990 1024 1056 1080 1089 1152 1188 1210 1215 1280 1296 1320 1408 1440 1452 1485 1536 1584 1620 1728 1760 1782 1815 1920 1936 1944 1980 2112 2160 2178 2304 2376 2420 2430 2560 2592 2640 2673 2816 2880 2904 2970 3072 3168 3240 3267 3456 3520 3564 3630 3840 3872 3888 3960 4224 4320 4356 4455 4608 4752 4840 4860 5120 5184 5280 5346 5445 5632 5760 5808 5940 6336 6480 6534 6912 7040 7128 7260 7680 7744 7776 7920 8448 8640 8712 8910 9216 9504 9680 9720 9801 10368 10560 10692 10890 11264 11520 11616 11880 12672 12960 13068 13365 13824 14080 14256 14520 15360 15488 15552 15840 16335 16896 17280 17424 17820 19008 19360 19440 19602 20736 21120 21384 21780 23040 23232 23760 25344 25920 26136 26730 27648 28160 28512 29040 29403 30976 31104 31680 32670 33792 34560 34848 35640 38016 38720 38880 39204 41472 42240 42768 43560 46080 46464 47520 49005 50688 51840 52272 53460 56320 57024 58080 58806 61952 62208 63360 65340 69120 69696 71280 76032 77440 77760 78408 82944 84480 85536 87120 92928 95040 98010 101376 103680 104544 106920 114048 116160 117612 123904 124416 126720 130680 138240 139392 140897 142560 147015 152064 154880 155520 156816 168960 171072 174240 185856 190080 196020 207360 209088 213840 228096 232320 235224 248832 253440 261360 278784 281794 285120 294030 304128 309760 311040 313632 342144 348480 371712 380160 392040 414720 418176 422691 427680 456192 464640 470448 506880 522720 557568 563588 570240 588060 619520 622080 627264 684288 696960 704485 760320 784080 836352 845382 855360 912384 929280 940896 1045440 1115136 1127176 1140480 1176120 1244160 1254528 1268073 1368576 1393920 1408970 1520640 1549867 1568160 1672704 1690764 1710720 1858560 1881792 2090880 2113455 2254352 2280960 2352240 2509056 2536146 2737152 2787840 2817940 3099734 3136320 3345408 3381528 3421440 3763584 3804219 4181760 4226910 4508704 4561920 4649601 4704480 5018112 5072292 5575680 5635880 6199468 6272640 6340365 6763056 6842880 7527168 7608438 7749335 8363520 8453820 9017408 9299202 9408960 10036224 10144584 11271760 11412657 12398936 12545280 12680730 13526112 13685760 13948803 15054336 15216876 15498670 16727040 16907640 17048537 18034816 18598404 18817920 19021095 20289168 22543520 22825314 23248005 24797872 25090560 25361460 27052224 27897606 30108672 30433752 30997340 33815280 34097074 34237971 36069632 37196808 37635840 38042190 40578336 41846409 45087040 45650628 46496010 49595744 50181120 50722920 51145611 54104448 55795212 57063285 60867504 61994680 67630560 68194148 68475942 69744015 72139264 74393616 75271680 76084380 81156672 83692818 85242685 90174080 91301256 92992020 99191488 101445840 102291222 108208896 111590424 114126570 121735008 123989360 125539227 135261120 136388296 136951884 139488030 144278528 148787232 150543360 152168760 153436833 162313344 167385636 170485370 171189855 180348160 182602512 185984040 198382976 202891680 204582444 209232045 216417792 223180848 228253140 243470016 247978720 251078454 255728055 270522240 272776592 273903768 278976060 297574464 304337520 306873666 324626688 334771272 340970740 342379710 360696320 365205024 371968080 376617681 396765952 405783360 409164888 418464090 432835584 446361696 456506280 460310499 486940032 495957440 502156908 511456110 541044480 545553184 547807536 557952120 595148928 608675040 613747332 627696135 649253376 669542544 681941480 684759420 721392640 730410048 743936160 753235362 767184165 793531904 811566720 818329776 836928180 892723392 913012560 920620998 973880064 991914880 1004313816 1022912220 1082088960 1091106368 1095615072 1115904240 1190297856 1217350080 1227494664 1255392270 1298506752 1339085088 1363882960 1369518840 1380931497 1460820096 1487872320 1506470724 1534368330 1587063808 1623133440 1636659552 1673856360 1785446784 1826025120 1841241996 1883088405 1947760128 1983829760 2008627632 2045824440 2164177920 2182212736 2191230144 2231808480 2301552495 2380595712 2434700160 2454989328 2510784540 2678170176 2727765920 2739037680 2761862994 2921640192 2975744640 3012941448 3068736660 3246266880 3273319104 3347712720 3570893568 3652050240 3682483992 3766176810 3895520256 3967659520 4017255264 4091648880 4142794491 4364425472 4382460288 4463616960 4603104990 4761191424 4869400320 4909978656 5021569080 5356340352 5455531840 5478075360 5523725988 5843280384 5951489280 6025882896 6137473320 6492533760 6546638208 6695425440 6904657485 7141787136 7304100480 7364967984 7532353620 7935319040 8034510528 8183297760 8285588982 8728850944 8764920576 8927233920 9206209980 9738800640 9819957312 10043138160 10712680704 10911063680 10956150720 11047451976 11686560768 11902978560 12051765792 12274946640 13093276416 13390850880 13809314970 14283574272 14608200960 14729935968 15064707240 16069021056 16366595520 16571177964 17457701888 17529841152 17854467840 18412419960 19477601280 19639914624 20086276320 20713972455 21425361408 21822127360 21912301440 22094903952 23805957120 24103531584 24549893280 26186552832 26781701760 27618629940 29216401920 29459871936 30129414480 32138042112 32733191040 33142355928 35059682304 35708935680 36824839920 39279829248 40172552640 41427944910 42850722816 43644254720 43824602880 44189807904 48207063168 49099786560 52373105664 53563403520 55237259880 58432803840 58919743872 60258828960 64276084224 65466382080 66284711856 71417871360 73649679840 78559658496 80345105280 82855889820 87288509440 87649205760 88379615808 96414126336 98199573120 107126807040 110474519760 117839487744 120517657920 128552168448 130932764160 132569423712 147299359680 157119316992 160690210560 165711779640 175298411520 176759231616 192828252672 196399146240 214253614080 220949039520 235678975488 241035315840 261865528320 265138847424 294598719360 321380421120 331423559280 353518463232 385656505344 392798292480 441898079040 471357950976 482070631680 530277694848 589197438720 642760842240 662847118560 707036926464 785596584960 883796158080 964141263360 1060555389696 1178394877440 1325694237120 1414073852928 1767592316160 1928282526720 2121110779392 2356789754880 2651388474240 3535184632320 4242221558784 5302776948480 7070369264640 10605553896960 21211107793920
• Sum of all divisors σ(n): 83777413133232
• Sum of proper divisors (its aliquot sum) s(n): 62566305339312
• 21211107793920 is an abundant number, because the sum of its proper divisors (62566305339312) is greater than itself. Its abundance is 41355197545392

Bases of 21211107793920

• Binary: 100110100101010011000100010111001110000000000₂
• Hexadecimal: 0x134A988B9C00
• Base-36: 7IO8XXC00

Squares and roots of 21211107793920

• 21211107793920 squared (21211107793920²) is 449911093845293769188966400
• 21211107793920 cubed (21211107793920³) is 9543112709232983210356098764309004288000
• The square root of 21211107793920 is 4605551.8446674769
• The cube root of 21211107793920 is 27681.3829618537

Scales and comparisons

• 21,211,107,793,920 seconds is equal to 674,447 years, 32 weeks, 19 hours, 12 minutes.
• To count from 1 to 21,211,107,793,920 would take you about one million, six hundred eighty-six thousand, one hundred nineteen 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 21211107793920 cubic inches would be around 2306.8 feet tall.

Recreational maths with 21211107793920

• 21211107793920 backwards is 02939770111212
• 21211107793920 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21211107793920's digits is 45
• More coming soon!