21688280640000

Names of 21688280640000

• Cardinal: 21688280640000 can be written as Twenty-one trillion, six hundred eighty-eight billion, two hundred eighty million, six hundred forty thousand.

Scientific notation

• Scientific notation: 2.168828064 × 10¹³

Factors of 21688280640000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 579304

Divisors of 21688280640000

• Number of divisors d(n): 600
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 25 26 30 32 36 39 40 45 48 50 52 60 64 65 72 75 78 80 90 96 100 104 117 120 125 128 130 144 150 156 160 180 192 195 200 208 225 234 240 250 256 260 288 300 312 320 325 360 375 384 390 400 416 450 468 480 500 512 520 576 585 600 624 625 640 650 720 750 768 780 800 832 900 936 960 975 1000 1040 1125 1152 1170 1200 1248 1250 1280 1300 1440 1500 1536 1560 1600 1625 1664 1800 1872 1875 1920 1950 2000 2080 2250 2304 2340 2400 2496 2500 2560 2600 2880 2925 3000 3120 3200 3250 3328 3600 3744 3750 3840 3900 4000 4160 4500 4608 4680 4800 4875 4992 5000 5200 5625 5760 5850 6000 6240 6400 6500 6656 7200 7488 7500 7680 7800 8000 8125 8320 9000 9360 9600 9750 9984 10000 10400 11250 11520 11700 12000 12480 12800 13000 14400 14625 14976 15000 15600 16000 16250 16640 18000 18720 19200 19500 19968 20000 20800 22500 23040 23400 24000 24375 24960 26000 28800 29250 29952 30000 31200 32000 32500 33280 36000 37440 38400 39000 40000 41600 45000 46800 48000 48750 49920 52000 57600 58500 59904 60000 62400 64000 65000 72000 73125 74880 78000 80000 83200 90000 93600 96000 97500 99840 104000 115200 117000 120000 124800 130000 144000 146250 149760 156000 160000 166400 180000 187200 192000 195000 208000 234000 240000 249600 260000 288000 292500 299520 312000 320000 360000 374400 390000 416000 468000 480000 499200 520000 576000 579281 585000 624000 720000 748800 780000 832000 936000 960000 1040000 1158562 1170000 1248000 1440000 1497600 1560000 1737843 1872000 2080000 2317124 2340000 2496000 2880000 2896405 3120000 3475686 3744000 4160000 4634248 4680000 5213529 5792810 6240000 6951372 7488000 7530653 8689215 9268496 9360000 10427058 11585620 12480000 13902744 14482025 15061306 17378430 18536992 18720000 20854116 22591959 23171240 26067645 27805488 28964050 30122612 34756860 37073984 37440000 37653265 41708232 43446075 45183918 46342480 52135290 55610976 57928100 60245224 67775877 69513720 72410125 74147968 75306530 83416464 86892150 90367836 92684960 104270580 111221952 112959795 115856200 120490448 130338225 135551754 139027440 144820250 148295936 150613060 166832928 173784300 180735672 185369920 188266325 208541160 217230375 222443904 225919590 231712400 240980896 260676450 271103508 278054880 289640500 296591872 301226120 333665856 338879385 347568600 361471344 362050625 370739840 376532650 417082320 434460750 444887808 451839180 463424800 481961792 521352900 542207016 556109760 564798975 579281000 602452240 651691125 667331712 677758770 695137200 722942688 724101250 741479680 753065300 834164640 868921500 889775616 903678360 926849600 941331625 963923584 1042705800 1084414032 1086151875 1112219520 1129597950 1158562000 1204904480 1303382250 1334663424 1355517540 1390274400 1445885376 1448202500 1482959360 1506130600 1668329280 1694396925 1737843000 1807356720 1853699200 1882663250 1927847168 2085411600 2168828064 2172303750 2224439040 2259195900 2317124000 2409808960 2606764500 2669326848 2711035080 2780548800 2823994875 2891770752 2896405000 3012261200 3258455625 3336658560 3388793850 3475686000 3614713440 3707398400 3765326500 3855694336 4170823200 4337656128 4344607500 4448878080 4518391800 4634248000 4706658125 4819617920 5213529000 5422070160 5561097600 5647989750 5783541504 5792810000 6024522400 6516911250 6673317120 6777587700 6951372000 7229426880 7414796800 7530653000 8341646400 8471984625 8675312256 8689215000 9036783600 9268496000 9413316250 9639235840 10427058000 10844140320 11122195200 11295979500 11567083008 11585620000 12049044800 13033822500 13346634240 13555175400 13902744000 14119974375 14458853760 15061306000 16683292800 16943969250 17350624512 17378430000 18073567200 18536992000 18826632500 19278471680 20854116000 21688280640 22244390400 22591959000 23171240000 24098089600 26067645000 27110350800 27805488000 28239948750 28917707520 30122612000 33366585600 33887938500 34701249024 34756860000 36147134400 37073984000 37653265000 41708232000 42359923125 43376561280 45183918000 46342480000 48196179200 52135290000 54220701600 55610976000 56479897500 57835415040 60245224000 66733171200 67775877000 69513720000 72294268800 75306530000 83416464000 84719846250 86753122560 90367836000 92684960000 96392358400 104270580000 108441403200 111221952000 112959795000 120490448000 135551754000 139027440000 144588537600 150613060000 166832928000 169439692500 173506245120 180735672000 185369920000 208541160000 216882806400 225919590000 240980896000 271103508000 278054880000 289177075200 301226120000 333665856000 338879385000 361471344000 417082320000 433765612800 451839180000 481961792000 542207016000 556109760000 602452240000 677758770000 722942688000 834164640000 867531225600 903678360000 1084414032000 1204904480000 1355517540000 1445885376000 1668329280000 1807356720000 2168828064000 2409808960000 2711035080000 3614713440000 4337656128000 5422070160000 7229426880000 10844140320000 21688280640000
• Sum of all divisors σ(n): 84234128991012
• Sum of proper divisors (its aliquot sum) s(n): 62545848351012
• 21688280640000 is an abundant number, because the sum of its proper divisors (62545848351012) is greater than itself. Its abundance is 40857567711012

Bases of 21688280640000

• Binary: 100111011100110110010010000110110101000000000₂
• Hexadecimal: 0x13B9B2436A00
• Base-36: 7ORGIBGG0

Squares and roots of 21688280640000

• 21688280640000 squared (21688280640000²) is 470381517119398809600000000
• 21688280640000 cubed (21688280640000³) is 10201766351154485770686726144000000000000
• The square root of 21688280640000 is 4657067.8156969113
• The cube root of 21688280640000 is 27887.4223956415

Scales and comparisons

• 21,688,280,640,000 seconds is equal to 689,620 years, 12 weeks, 2 days, 16 hours.
• To count from 1 to 21,688,280,640,000 would take you about one million, seven hundred twenty-four thousand and fifty 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 21688280640000 cubic inches would be around 2324 feet tall.

Recreational maths with 21688280640000

• 21688280640000 backwards is 00004608288612
• 21688280640000 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21688280640000's digits is 45
• More coming soon!