21391920000

Names of 21391920000

• Cardinal: 21391920000 can be written as Twenty-one billion, three hundred ninety-one million, nine hundred twenty thousand.

Scientific notation

• Scientific notation: 2.139192 × 10¹⁰

Factors of 21391920000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 131

Divisors of 21391920000

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 25 30 32 33 36 37 40 44 45 48 50 55 60 64 66 72 73 74 75 80 88 90 96 99 100 110 111 120 125 128 132 144 146 148 150 160 165 176 180 185 192 198 200 219 220 222 225 240 250 264 275 288 292 296 300 320 330 333 352 360 365 370 375 384 396 400 407 438 440 444 450 480 495 500 528 550 555 576 584 592 600 625 640 657 660 666 704 720 730 740 750 792 800 803 814 825 876 880 888 900 925 960 990 1000 1056 1095 1100 1110 1125 1152 1168 1184 1200 1221 1250 1314 1320 1332 1375 1408 1440 1460 1480 1500 1584 1600 1606 1628 1650 1665 1752 1760 1776 1800 1825 1850 1875 1920 1980 2000 2035 2112 2190 2200 2220 2250 2336 2368 2400 2409 2442 2475 2500 2628 2640 2664 2701 2750 2775 2880 2920 2960 3000 3168 3200 3212 3256 3285 3300 3330 3504 3520 3552 3600 3650 3663 3700 3750 3960 4000 4015 4070 4125 4224 4380 4400 4440 4500 4625 4672 4736 4800 4818 4884 4950 5000 5256 5280 5328 5402 5475 5500 5550 5625 5760 5840 5920 6000 6105 6336 6424 6512 6570 6600 6660 6875 7008 7040 7104 7200 7227 7300 7326 7400 7500 7920 8000 8030 8103 8140 8250 8325 8760 8800 8880 9000 9125 9250 9344 9600 9636 9768 9900 10000 10175 10512 10560 10656 10804 10950 11000 11100 11250 11680 11840 12000 12045 12210 12375 12672 12848 13024 13140 13200 13320 13505 13750 13875 14016 14208 14400 14454 14600 14652 14800 15000 15840 16000 16060 16206 16280 16425 16500 16650 17520 17600 17760 18000 18250 18315 18500 19272 19536 19800 20000 20075 20350 20625 21024 21120 21312 21608 21900 22000 22200 22500 23125 23360 23680 24000 24090 24309 24420 24750 25696 26048 26280 26400 26640 27010 27375 27500 27750 28032 28800 28908 29200 29304 29600 29711 30000 30525 31680 32120 32412 32560 32850 33000 33300 35040 35200 35520 36000 36135 36500 36630 37000 38544 39072 39600 40000 40150 40515 40700 41250 41625 42048 42624 43216 43800 44000 44400 45000 45625 46250 46720 48000 48180 48618 48840 49500 50875 51392 52096 52560 52800 53280 54020 54750 55000 55500 57816 58400 58608 59200 59422 60000 60225 61050 61875 63360 64240 64824 65120 65700 66000 66600 67525 69375 70080 71040 72000 72270 73000 73260 74000 77088 78144 79200 80000 80300 81030 81400 82125 82500 83250 84096 86432 87600 88000 88800 89133 90000 91250 91575 92500 96360 97236 97680 99000 100375 101750 102784 105120 105600 106560 108040 109500 110000 111000 115632 116800 117216 118400 118844 120000 120450 121545 122100 123750 128480 129648 130240 131400 132000 133200 135050 136875 138750 140160 144000 144540 146000 146520 148000 148555 152625 154176 156288 158400 160600 162060 162800 164250 165000 166500 172864 175200 176000 177600 178266 180000 180675 182500 183150 185000 192720 194472 195360 198000 200750 202575 203500 208125 210240 213120 216080 219000 220000 222000 231264 233600 234432 237688 240000 240900 243090 244200 247500 254375 256960 259296 260480 262800 264000 266400 267399 270100 273750 277500 289080 292000 293040 296000 297110 301125 305250 308352 316800 321200 324120 325600 328500 330000 333000 337625 345728 350400 355200 356532 360000 361350 365000 366300 370000 385440 388944 390720 396000 401500 405150 407000 410625 416250 420480 432160 438000 440000 444000 445665 457875 462528 468864 475376 481800 486180 488400 495000 501875 508750 513920 518592 525600 528000 532800 534798 540200 547500 555000 578160 584000 586080 592000 594220 602250 607725 610500 642400 648240 651200 657000 660000 666000 675250 700800 713064 720000 722700 730000 732600 740000 742775 763125 770880 777888 781440 792000 803000 810300 814000 821250 832500 864320 876000 880000 888000 891330 903375 915750 925056 950752 963600 972360 976800 990000 1003750 1012875 1017500 1037184 1051200 1065600 1069596 1080400 1095000 1110000 1156320 1168000 1172160 1188440 1204500 1215450 1221000 1284800 1296480 1302400 1314000 1320000 1332000 1336995 1350500 1426128 1445400 1460000 1465200 1480000 1485550 1505625 1526250 1541760 1555776 1584000 1606000 1620600 1628000 1642500 1665000 1688125 1728640 1752000 1776000 1782660 1806750 1831500 1901504 1927200 1944720 1953600 1980000 2007500 2025750 2035000 2102400 2139192 2160800 2190000 2220000 2228325 2289375 2312640 2344320 2376880 2409000 2430900 2442000 2569600 2592960 2628000 2640000 2664000 2673990 2701000 2852256 2890800 2920000 2930400 2960000 2971100 3011250 3038625 3052500 3111552 3212000 3241200 3256000 3285000 3330000 3376250 3504000 3565320 3613500 3663000 3713875 3803008 3854400 3889440 3907200 3960000 4015000 4051500 4070000 4278384 4321600 4380000 4440000 4456650 4516875 4578750 4625280 4753760 4818000 4861800 4884000 5064375 5185920 5256000 5328000 5347980 5402000 5704512 5781600 5840000 5860800 5942200 6022500 6077250 6105000 6424000 6482400 6512000 6570000 6660000 6684975 6752500 7130640 7227000 7326000 7427750 7708800 7778880 7920000 8030000 8103000 8140000 8556768 8643200 8760000 8880000 8913300 9033750 9157500 9507520 9636000 9723600 9768000 10128750 10512000 10695960 10804000 11141625 11409024 11563200 11721600 11884400 12045000 12154500 12210000 12848000 12964800 13140000 13320000 13369950 13505000 14261280 14454000 14652000 14855500 15193125 15557760 16060000 16206000 16280000 17113536 17520000 17826600 18067500 18315000 18569375 19015040 19272000 19447200 19536000 20257500 21391920 21608000 22283250 23126400 23768800 24090000 24309000 24420000 25929600 26280000 26640000 26739900 27010000 28522560 28908000 29304000 29711000 30386250 32120000 32412000 32560000 33424875 34227072 35653200 36135000 36630000 37138750 38544000 38894400 40515000 42783840 43216000 44566500 47537600 48180000 48618000 48840000 52560000 53479800 54020000 55708125 57045120 57816000 58608000 59422000 60772500 64240000 64824000 66849750 71306400 72270000 73260000 74277500 77788800 81030000 85567680 89133000 95075200 96360000 97236000 97680000 106959600 108040000 111416250 115632000 118844000 121545000 129648000 133699500 142612800 144540000 146520000 148555000 162060000 167124375 171135360 178266000 192720000 194472000 213919200 216080000 222832500 237688000 243090000 267399000 285225600 289080000 293040000 297110000 324120000 334248750 356532000 388944000 427838400 445665000 475376000 486180000 534798000 578160000 594220000 648240000 668497500 713064000 855676800 891330000 972360000 1069596000 1188440000 1336995000 1426128000 1782660000 1944720000 2139192000 2376880000 2673990000 3565320000 4278384000 5347980000 7130640000 10695960000 21391920000
• Sum of all divisors σ(n): 87363722160
• Sum of proper divisors (its aliquot sum) s(n): 65971802160
• 21391920000 is an abundant number, because the sum of its proper divisors (65971802160) is greater than itself. Its abundance is 44579882160

Bases of 21391920000

• Binary: 10011111011000011101100101110000000₂
• Hexadecimal: 0x4FB0ECB80
• Base-36: 9TS7340

Squares and roots of 21391920000

• 21391920000 squared (21391920000²) is 457614241286400000000
• 21391920000 cubed (21391920000³) is 9789247240459365888000000000000
• The square root of 21391920000 is 146259.7689045077
• The cube root of 21391920000 is 2775.9816346953

Scales and comparisons

• 21,391,920,000 seconds is equal to 680 years, 10 weeks, 1 day, 16 hours.
• To count from 1 to 21,391,920,000 would take you about one thousand, three hundred sixty 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 21391920000 cubic inches would be around 231.3 feet tall.

Recreational maths with 21391920000

• 21391920000 backwards is 00002919312
• The number of decimal digits it has is: 11
• The sum of 21391920000's digits is 27
• More coming soon!