21385728000

Names of 21385728000

• Cardinal: 21385728000 can be written as Twenty-one billion, three hundred eighty-five million, seven hundred twenty-eight thousand.

Scientific notation

• Scientific notation: 2.1385728 × 10¹⁰

Factors of 21385728000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 47

Divisors of 21385728000

• Number of divisors d(n): 1664
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 20 21 24 25 26 27 28 30 32 34 35 36 39 40 42 45 48 50 51 52 54 56 60 63 64 65 68 70 72 75 78 80 84 85 90 91 96 100 102 104 105 108 112 117 119 120 125 126 128 130 135 136 140 144 150 153 156 160 168 170 175 180 182 189 192 195 200 204 208 210 216 221 224 225 234 238 240 250 252 255 256 260 270 272 273 280 288 300 306 312 315 320 325 336 340 350 351 357 360 364 375 378 384 390 400 408 416 420 425 432 442 448 450 455 459 468 476 480 500 504 510 512 520 525 540 544 546 560 576 585 595 600 612 624 630 640 650 663 672 675 680 700 702 714 720 728 750 756 765 768 780 800 816 819 832 840 850 864 875 884 896 900 910 918 936 945 952 960 975 1000 1008 1020 1024 1040 1050 1071 1080 1088 1092 1105 1120 1125 1152 1170 1190 1200 1224 1248 1260 1275 1280 1300 1326 1344 1350 1360 1365 1400 1404 1428 1440 1456 1500 1512 1530 1536 1547 1560 1575 1600 1625 1632 1638 1664 1680 1700 1728 1750 1755 1768 1785 1792 1800 1820 1836 1872 1890 1904 1920 1950 1989 2000 2016 2040 2048 2080 2100 2125 2142 2160 2176 2184 2210 2240 2250 2275 2295 2304 2340 2380 2400 2448 2457 2496 2520 2550 2560 2600 2625 2652 2688 2700 2720 2730 2800 2808 2856 2880 2912 2925 2975 3000 3024 3060 3072 3094 3120 3150 3200 3213 3250 3264 3276 3315 3328 3360 3375 3400 3456 3500 3510 3536 3570 3584 3600 3640 3672 3744 3780 3808 3825 3840 3900 3978 4000 4032 4080 4095 4096 4160 4200 4250 4284 4320 4352 4368 4420 4480 4500 4550 4590 4608 4641 4680 4725 4760 4800 4875 4896 4914 4992 5040 5100 5120 5200 5250 5304 5355 5376 5400 5440 5460 5525 5600 5616 5712 5760 5824 5850 5950 5967 6000 6048 6120 6144 6188 6240 6300 6375 6400 6426 6500 6528 6552 6630 6656 6720 6750 6800 6825 6912 7000 7020 7072 7140 7168 7200 7280 7344 7488 7560 7616 7650 7680 7735 7800 7875 7956 8000 8064 8160 8190 8320 8400 8500 8568 8640 8704 8736 8775 8840 8925 8960 9000 9100 9180 9216 9282 9360 9450 9520 9600 9750 9792 9828 9945 9984 10080 10200 10240 10400 10500 10608 10710 10752 10800 10880 10920 11050 11200 11232 11375 11424 11475 11520 11648 11700 11900 11934 12000 12096 12240 12285 12288 12376 12480 12600 12750 12800 12852 13000 13056 13104 13260 13312 13440 13500 13600 13650 13824 13923 14000 14040 14144 14280 14336 14400 14560 14625 14688 14875 14976 15120 15232 15300 15360 15470 15600 15750 15912 16000 16065 16128 16320 16380 16575 16640 16800 17000 17136 17280 17408 17472 17550 17680 17850 17920 18000 18200 18360 18432 18564 18720 18900 19040 19125 19200 19500 19584 19656 19890 19968 20160 20400 20475 20480 20800 21000 21216 21420 21504 21600 21760 21840 22100 22400 22464 22750 22848 22950 23040 23205 23296 23400 23625 23800 23868 24000 24192 24480 24570 24752 24960 25200 25500 25600 25704 26000 26112 26208 26520 26624 26775 26880 27000 27200 27300 27625 27648 27846 28000 28080 28288 28560 28672 28800 29120 29250 29376 29750 29835 29952 30240 30464 30600 30720 30940 31200 31500 31824 32000 32130 32256 32640 32760 33150 33280 33600 34000 34125 34272 34560 34816 34944 35100 35360 35700 35840 36000 36400 36720 36864 37128 37440 37800 38080 38250 38400 38675 39000 39168 39312 39780 39936 40320 40800 40950 41600 41769 42000 42432 42840 43008 43200 43520 43680 43875 44200 44625 44800 44928 45500 45696 45900 46080 46410 46592 46800 47250 47600 47736 48000 48384 48960 49140 49504 49725 49920 50400 51000 51200 51408 52000 52224 52416 53040 53248 53550 53760 54000 54400 54600 55250 55296 55692 56000 56160 56576 57120 57375 57600 58240 58500 58752 59500 59670 59904 60480 60928 61200 61425 61440 61880 62400 63000 63648 64000 64260 64512 65280 65520 66300 66560 67200 68000 68250 68544 69120 69615 69632 69888 70200 70720 71400 71680 72000 72800 73440 74256 74880 75600 76160 76500 76800 77350 78000 78336 78624 79560 79872 80325 80640 81600 81900 82875 83200 83538 84000 84864 85680 86016 86400 87040 87360 87750 88400 89250 89600 89856 91000 91392 91800 92160 92820 93184 93600 94500 95200 95472 96000 96768 97920 98280 99008 99450 99840 100800 102000 102375 102400 102816 104000 104448 104832 106080 107100 107520 108000 108800 109200 110500 110592 111384 112000 112320 113152 114240 114750 115200 116025 116480 117000 117504 119000 119340 119808 120960 121856 122400 122850 123760 124800 126000 127296 128000 128520 129024 130560 131040 132600 133120 133875 134400 136000 136500 137088 138240 139230 139776 140400 141440 142800 143360 144000 145600 146880 148512 149175 149760 151200 152320 153000 153600 154700 156000 156672 157248 159120 159744 160650 161280 163200 163800 165750 166400 167076 168000 169728 171360 172800 174080 174720 175500 176800 178500 179200 179712 182000 182784 183600 184320 185640 186368 187200 189000 190400 190944 192000 193375 193536 195840 196560 198016 198900 199680 201600 204000 204750 205632 208000 208845 208896 209664 212160 214200 215040 216000 217600 218400 221000 222768 224000 224640 226304 228480 229500 230400 232050 232960 234000 235008 238000 238680 239616 241920 243712 244800 245700 247520 248625 249600 252000 254592 256000 257040 258048 261120 262080 265200 266240 267750 268800 272000 273000 274176 276480 278460 279552 280800 282880 285600 288000 291200 293760 297024 298350 299520 302400 304640 306000 307125 307200 309400 312000 313344 314496 318240 321300 322560 326400 327600 331500 332800 334152 336000 339456 342720 345600 348075 348160 349440 351000 353600 357000 358400 359424 364000 365568 367200 371280 372736 374400 378000 380800 381888 384000 386750 387072 391680 393120 396032 397800 399360 401625 403200 408000 409500 411264 416000 417690 419328 424320 428400 430080 432000 435200 436800 442000 445536 448000 449280 452608 456960 459000 460800 464100 465920 468000 470016 476000 477360 479232 483840 487424 489600 491400 495040 497250 499200 504000 509184 512000 514080 522240 524160 530400 535500 537600 544000 546000 548352 552960 556920 559104 561600 565760 571200 576000 580125 582400 587520 594048 596700 599040 604800 609280 612000 614250 618800 624000 626688 628992 636480 642600 645120 652800 655200 663000 665600 668304 672000 678912 685440 691200 696150 698880 702000 707200 714000 716800 718848 728000 731136 734400 742560 745875 748800 756000 761600 763776 768000 773500 774144 783360 786240 792064 795600 798720 803250 806400 816000 819000 822528 832000 835380 838656 848640 856800 864000 870400 873600 884000 891072 896000 898560 905216 913920 918000 921600 928200 931840 936000 940032 952000 954720 967680 979200 982800 990080 994500 998400 1008000 1018368 1028160 1044225 1044480 1048320 1060800 1071000 1075200 1088000 1092000 1096704 1113840 1118208 1123200 1131520 1142400 1152000 1160250 1164800 1175040 1188096 1193400 1198080 1209600 1218560 1224000 1228500 1237600 1248000 1257984 1272960 1285200 1290240 1305600 1310400 1326000 1331200 1336608 1344000 1357824 1370880 1382400 1392300 1397760 1404000 1414400 1428000 1437696 1456000 1462272 1468800 1485120 1491750 1497600 1512000 1523200 1527552 1536000 1547000 1566720 1572480 1584128 1591200 1606500 1612800 1632000 1638000 1645056 1664000 1670760 1677312 1697280 1713600 1728000 1740375 1740800 1747200 1768000 1782144 1792000 1797120 1827840 1836000 1856400 1863680 1872000 1880064 1904000 1909440 1935360 1958400 1965600 1980160 1989000 1996800 2016000 2036736 2056320 2088450 2096640 2121600 2142000 2150400 2176000 2184000 2193408 2227680 2246400 2263040 2284800 2304000 2320500 2329600 2350080 2376192 2386800 2396160 2419200 2437120 2448000 2457000 2475200 2496000 2515968 2545920 2570400 2611200 2620800 2652000 2673216 2688000 2715648 2741760 2764800 2784600 2795520 2808000 2828800 2856000 2912000 2937600 2970240 2983500 2995200 3024000 3046400 3055104 3094000 3133440 3144960 3168256 3182400 3213000 3225600 3264000 3276000 3290112 3328000 3341520 3354624 3394560 3427200 3456000 3480750 3494400 3536000 3564288 3584000 3594240 3655680 3672000 3712800 3744000 3808000 3818880 3870720 3916800 3931200 3960320 3978000 3993600 4032000 4073472 4112640 4176900 4193280 4243200 4284000 4352000 4368000 4386816 4455360 4492800 4526080 4569600 4608000 4641000 4659200 4700160 4752384 4773600 4838400 4896000 4914000 4950400 4992000 5031936 5091840 5140800 5221125 5222400 5241600 5304000 5346432 5376000 5483520 5569200 5591040 5616000 5657600 5712000 5824000 5875200 5940480 5967000 5990400 6048000 6092800 6110208 6188000 6289920 6336512 6364800 6426000 6451200 6528000 6552000 6580224 6656000 6683040 6789120 6854400 6912000 6961500 6988800 7072000 7128576 7188480 7311360 7344000 7425600 7488000 7616000 7637760 7833600 7862400 7920640 7956000 8064000 8146944 8225280 8353800 8386560 8486400 8568000 8704000 8736000 8910720 8985600 9139200 9282000 9318400 9400320 9504768 9547200 9676800 9792000 9828000 9900800 9984000 10063872 10183680 10281600 10442250 10483200 10608000 10692864 10752000 10967040 11138400 11232000 11315200 11424000 11648000 11750400 11880960 11934000 11980800 12096000 12185600 12220416 12376000 12579840 12729600 12852000 13056000 13104000 13160448 13366080 13578240 13708800 13824000 13923000 13977600 14144000 14257152 14688000 14851200 14976000 15232000 15275520 15667200 15724800 15841280 15912000 16128000 16450560 16707600 16773120 16972800 17136000 17472000 17821440 17971200 18278400 18564000 19009536 19094400 19353600 19584000 19656000 19801600 19968000 20367360 20563200 20884500 20966400 21216000 21385728 21934080 22276800 22464000 22630400 22848000 23296000 23500800 23761920 23868000 24192000 24440832 24752000 25159680 25459200 25704000 26112000 26208000 26732160 27417600 27846000 27955200 28288000 28514304 29376000 29702400 29952000 30464000 30551040 31449600 31682560 31824000 32256000 32901120 33415200 33945600 34272000 34944000 35642880 35942400 36556800 37128000 38188800 39168000 39312000 39603200 40734720 41126400 41769000 41932800 42432000 42771456 44553600 44928000 45696000 46592000 47001600 47523840 47736000 48384000 49504000 50319360 50918400 51408000 52416000 53464320 54835200 55692000 56576000 57028608 58752000 59404800 59904000 60928000 61102080 62899200 63648000 65802240 66830400 67891200 68544000 69888000 71285760 74256000 76377600 78336000 78624000 79206400 82252800 83538000 83865600 84864000 85542912 89107200 89856000 91392000 95047680 95472000 96768000 99008000 101836800 102816000 104832000 106928640 109670400 111384000 113152000 117504000 118809600 122204160 125798400 127296000 133660800 137088000 139776000 142571520 148512000 152755200 157248000 158412800 164505600 167076000 169728000 171085824 178214400 179712000 182784000 190944000 198016000 203673600 205632000 209664000 213857280 222768000 235008000 237619200 251596800 254592000 267321600 274176000 285143040 297024000 305510400 314496000 329011200 334152000 339456000 356428800 381888000 396032000 411264000 419328000 427714560 445536000 475238400 509184000 534643200 548352000 594048000 611020800 628992000 668304000 712857600 763776000 792064000 822528000 855429120 891072000 1018368000 1069286400 1188096000 1257984000 1336608000 1425715200 1527552000 1645056000 1782144000 2138572800 2376192000 2673216000 3055104000 3564288000 4277145600 5346432000 7128576000 10692864000 21385728000
• Sum of all divisors σ(n): 103041469440
• Sum of proper divisors (its aliquot sum) s(n): 81655741440
• 21385728000 is an abundant number, because the sum of its proper divisors (81655741440) is greater than itself. Its abundance is 60270013440

Bases of 21385728000

• Binary: 10011111010101100000101000000000000₂
• Hexadecimal: 0x4FAB05000
• Base-36: 9TOIDC0

Squares and roots of 21385728000

• 21385728000 squared (21385728000²) is 457349362089984000000
• 21385728000 cubed (21385728000³) is 9780749058629909348352000000000
• The square root of 21385728000 is 146238.5995556577
• The cube root of 21385728000 is 2775.7137681829

Scales and comparisons

• 21,385,728,000 seconds is equal to 680 years.
• To count from 1 to 21,385,728,000 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 21385728000 cubic inches would be around 231.3 feet tall.

Recreational maths with 21385728000

• 21385728000 backwards is 00082758312
• 21385728000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21385728000's digits is 36
• More coming soon!