21280968000

Names of 21280968000

• Cardinal: 21280968000 can be written as Twenty-one billion, two hundred eighty million, nine hundred sixty-eight thousand.

Scientific notation

• Scientific notation: 2.1280968 × 10¹⁰

Factors of 21280968000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 140

Divisors of 21280968000

• Number of divisors d(n): 784
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 41 45 48 50 54 60 64 72 75 80 81 82 89 90 96 100 108 120 123 125 135 144 150 160 162 164 178 180 192 200 205 216 225 240 243 246 250 267 270 288 300 320 324 328 356 360 369 375 400 405 410 432 445 450 480 486 492 500 534 540 576 600 615 648 656 675 712 720 729 738 750 800 801 810 820 864 890 900 960 972 984 1000 1025 1068 1080 1107 1125 1200 1215 1230 1296 1312 1335 1350 1424 1440 1458 1476 1500 1600 1602 1620 1640 1728 1780 1800 1845 1944 1968 2000 2025 2050 2136 2160 2214 2225 2250 2400 2403 2430 2460 2592 2624 2670 2700 2848 2880 2916 2952 3000 3075 3204 3240 3280 3321 3375 3560 3600 3645 3649 3690 3888 3936 4000 4005 4050 4100 4272 4320 4428 4450 4500 4800 4806 4860 4920 5125 5184 5340 5400 5535 5696 5832 5904 6000 6075 6150 6408 6480 6560 6642 6675 6750 7120 7200 7209 7290 7298 7380 7776 7872 8000 8010 8100 8200 8544 8640 8856 8900 9000 9225 9612 9720 9840 9963 10125 10250 10680 10800 10947 11070 11125 11664 11808 12000 12015 12150 12300 12816 12960 13120 13284 13350 13500 14240 14400 14418 14580 14596 14760 15375 15552 16020 16200 16400 16605 17088 17712 17800 18000 18225 18245 18450 19224 19440 19680 19926 20025 20250 20500 21360 21600 21627 21894 22140 22250 23328 23616 24000 24030 24300 24600 25632 25920 26568 26700 27000 27675 28480 28836 29160 29192 29520 29889 30375 30750 32040 32400 32800 32841 33210 33375 35424 35600 36000 36045 36450 36490 36900 38448 38880 39360 39852 40050 40500 41000 42720 43200 43254 43788 44280 44500 46125 46656 48060 48600 49200 49815 51264 53136 53400 54000 54735 55350 57672 58320 58384 59040 59778 60075 60750 61500 64080 64800 64881 65600 65682 66420 66750 70848 71200 72000 72090 72900 72980 73800 76896 77760 79704 80100 81000 82000 83025 85440 86508 87576 88560 89000 91125 91225 92250 96120 97200 98400 98523 99630 100125 106272 106800 108000 108135 109470 110700 115344 116640 116768 118080 119556 120150 121500 123000 128160 129600 129762 131364 132840 133500 138375 142400 144180 145800 145960 147600 149445 153792 159408 160200 162000 164000 164205 166050 173016 175152 177120 178000 180225 182250 182450 184500 192240 194400 196800 197046 199260 200250 212544 213600 216000 216270 218940 221400 230688 233280 233536 239112 240300 243000 246000 249075 256320 259524 262728 265680 267000 273675 276750 288360 291600 291920 295200 295569 298890 300375 318816 320400 324000 324405 328000 328410 332100 346032 350304 354240 356000 360450 364500 364900 369000 384480 388800 394092 398520 400500 415125 427200 432540 437880 442800 456125 461376 478224 480600 486000 492000 492615 498150 519048 525456 531360 534000 540675 547350 553500 576720 583200 583840 590400 591138 597780 600750 637632 640800 648000 648810 656820 664200 692064 700608 712000 720900 729000 729800 738000 747225 768960 788184 797040 801000 821025 830250 865080 875760 885600 886707 901125 912250 956448 961200 972000 984000 985230 996300 1038096 1050912 1062720 1068000 1081350 1094700 1107000 1153440 1166400 1167680 1182276 1195560 1201500 1245375 1281600 1297620 1313640 1328400 1368375 1384128 1441800 1458000 1459600 1476000 1477845 1494450 1576368 1594080 1602000 1622025 1642050 1660500 1730160 1751520 1771200 1773414 1802250 1824500 1912896 1922400 1944000 1970460 1992600 2076192 2101824 2136000 2162700 2189400 2214000 2306880 2364552 2391120 2403000 2463075 2490750 2595240 2627280 2656800 2660121 2703375 2736750 2883600 2916000 2919200 2952000 2955690 2988900 3152736 3188160 3204000 3244050 3284100 3321000 3460320 3503040 3546828 3604500 3649000 3736125 3844800 3940920 3985200 4105125 4152384 4325400 4378800 4428000 4433535 4729104 4782240 4806000 4926150 4981500 5190480 5254560 5313600 5320242 5406750 5473500 5767200 5832000 5838400 5911380 5977800 6305472 6408000 6488100 6568200 6642000 6920640 7093656 7209000 7298000 7389225 7472250 7881840 7970400 8110125 8210250 8650800 8757600 8856000 8867070 9458208 9564480 9612000 9852300 9963000 10380960 10509120 10640484 10813500 10947000 11534400 11822760 11955600 12315375 12976200 13136400 13284000 13300605 14187312 14418000 14596000 14778450 14944500 15763680 15940800 16220250 16420500 17301600 17515200 17734140 18916416 19224000 19704600 19926000 20761920 21280968 21627000 21894000 22167675 23645520 23911200 24630750 25952400 26272800 26568000 26601210 28374624 28836000 29192000 29556900 29889000 31527360 32440500 32841000 34603200 35468280 36946125 39409200 39852000 42561936 43254000 43788000 44335350 47291040 47822400 49261500 51904800 52545600 53202420 56749248 57672000 59113800 59778000 64881000 65682000 66503025 70936560 73892250 78818400 79704000 85123872 86508000 87576000 88670700 94582080 98523000 103809600 106404840 110838375 118227600 119556000 129762000 131364000 133006050 141873120 147784500 157636800 170247744 173016000 177341400 197046000 212809680 221676750 236455200 239112000 259524000 262728000 266012100 283746240 295569000 332515125 354682800 394092000 425619360 443353500 472910400 519048000 532024200 591138000 665030250 709365600 788184000 851238720 886707000 1064048400 1182276000 1330060500 1418731200 1773414000 2128096800 2364552000 2660121000 3546828000 4256193600 5320242000 7093656000 10640484000 21280968000
• Sum of all divisors σ(n): 81854070480
• Sum of proper divisors (its aliquot sum) s(n): 60573102480
• 21280968000 is an abundant number, because the sum of its proper divisors (60573102480) is greater than itself. Its abundance is 39292134480

Bases of 21280968000

• Binary: 10011110100011100011100110101000000₂
• Hexadecimal: 0x4F471CD40
• Base-36: 9RY5000

Squares and roots of 21280968000

• 21280968000 squared (21280968000²) is 452879599017024000000
• 21280968000 cubed (21280968000³) is 9637716254534119199232000000000
• The square root of 21280968000 is 145879.9780641607
• The cube root of 21280968000 is 2771.1739822515

Scales and comparisons

• 21,280,968,000 seconds is equal to 676 years, 34 weeks, 5 days, 12 hours.
• To count from 1 to 21,280,968,000 would take you about one thousand, three hundred fifty-three 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 21280968000 cubic inches would be around 230.9 feet tall.

Recreational maths with 21280968000

• 21280968000 backwards is 00086908212
• 21280968000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21280968000's digits is 36
• More coming soon!