21213281920000

Names of 21213281920000

• Cardinal: 21213281920000 can be written as Twenty-one trillion, two hundred thirteen billion, two hundred eighty-one million, nine hundred twenty thousand.

Scientific notation

• Scientific notation: 2.121328192 × 10¹³

Factors of 21213281920000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 595

Divisors of 21213281920000

• Number of divisors d(n): 880
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 29 32 40 41 50 58 61 64 80 82 100 116 122 125 128 145 160 164 200 205 232 244 250 256 290 305 320 328 400 410 457 464 488 500 512 580 610 625 640 656 725 800 820 914 928 976 1000 1024 1025 1160 1189 1220 1250 1280 1312 1450 1525 1600 1640 1769 1828 1856 1952 2000 2050 2285 2320 2378 2440 2500 2501 2560 2624 2900 3050 3200 3280 3538 3625 3656 3712 3904 4000 4100 4570 4640 4756 4880 5000 5002 5120 5125 5248 5800 5945 6100 6400 6560 7076 7250 7312 7424 7625 7808 8000 8200 8845 9140 9280 9512 9760 10000 10004 10250 10496 11425 11600 11890 12200 12505 12800 13120 13253 14152 14500 14624 14848 15250 15616 16000 16400 17690 18125 18280 18560 18737 19024 19520 20000 20008 20500 20992 22850 23200 23780 24400 25010 25600 25625 26240 26506 27877 28304 29000 29248 29696 29725 30500 31232 32000 32800 35380 36250 36560 37120 37474 38048 38125 39040 40000 40016 41000 41984 44225 45700 46400 47560 48800 50020 51250 52480 53012 55754 56608 57125 58000 58496 59450 61000 62464 62525 64000 65600 66265 70760 72500 72529 73120 74240 74948 76096 76250 78080 80000 80032 82000 88450 91400 92800 93685 95120 97600 100040 102500 104960 106024 111508 113216 114250 116000 116992 118900 122000 125050 128000 131200 132530 139385 141520 145000 145058 146240 148480 148625 149896 152192 152500 156160 160000 160064 164000 176900 182800 185600 187370 190240 195200 200080 205000 209920 212048 221125 223016 226432 228500 232000 233984 237800 244000 250100 262400 265060 278770 283040 285625 290000 290116 292480 297250 299792 304384 305000 312320 312625 320000 320128 328000 331325 353800 362645 365600 371200 374740 380480 390400 400160 410000 424096 442250 446032 452864 457000 464000 467968 468425 475600 488000 500200 524800 530120 543373 557540 566080 571250 580000 580232 584960 594500 599584 608768 610000 625250 640000 640256 656000 662650 696925 707600 725290 731200 742400 743125 749480 760960 780800 800320 808433 820000 848192 884500 892064 905728 914000 928000 936850 951200 976000 1000400 1049600 1060240 1086746 1105625 1115080 1132160 1142500 1142957 1160000 1160464 1169920 1189000 1199168 1217536 1220000 1250500 1280512 1312000 1325300 1393850 1415200 1450580 1462400 1486250 1498960 1521920 1561600 1563125 1600640 1616866 1640000 1656625 1696384 1769000 1784128 1811456 1813225 1828000 1856000 1873700 1902400 1952000 2000800 2120480 2173492 2211250 2230160 2264320 2285000 2285914 2320000 2320928 2339840 2342125 2378000 2398336 2440000 2501000 2561024 2624000 2650600 2716865 2787700 2830400 2901160 2924800 2972500 2997920 3043840 3126250 3201280 3233732 3280000 3313250 3392768 3484625 3538000 3568256 3626450 3656000 3712000 3747400 3804800 3904000 4001600 4042165 4240960 4346984 4422500 4460320 4528640 4570000 4571828 4640000 4641856 4684250 4756000 4796672 4880000 5002000 5248000 5301200 5433730 5575400 5660800 5714785 5802320 5849600 5945000 5995840 6087680 6252500 6402560 6467464 6560000 6626500 6785536 6969250 7076000 7136512 7252900 7312000 7494800 7609600 7808000 8003200 8084330 8283125 8481920 8693968 8845000 8920640 9057280 9066125 9140000 9143656 9280000 9283712 9368500 9512000 9593344 9760000 10004000 10602400 10867460 11150800 11321600 11429570 11604640 11699200 11710625 11890000 11991680 12505000 12805120 12934928 13120000 13253000 13571072 13584325 13938500 14152000 14273024 14505800 14624000 14989600 15219200 16006400 16168660 16566250 16963840 17387936 17423125 17690000 17841280 18132250 18280000 18287312 18560000 18567424 18737000 19024000 19186688 19520000 20008000 20210825 21204800 21734920 22301600 22643200 22859140 23209280 23421250 23780000 23983360 25010000 25869856 26240000 26506000 27168650 27877000 28304000 28546048 28573925 29011600 29248000 29979200 30438400 32012800 32337320 33132500 33145753 33927680 34775872 34846250 35380000 35682560 36264500 36560000 36574624 37134848 37474000 38048000 39040000 40016000 40421650 42409600 43469840 44603200 45286400 45330625 45718280 46418560 46842500 47560000 47966720 50020000 51739712 53012000 54337300 55754000 56608000 57147850 58023200 58496000 59958400 64025600 64674640 66265000 66291506 67855360 67921625 69551744 69692500 70760000 71365120 72529000 73120000 73149248 74269696 74948000 76096000 80032000 80843300 84819200 86939680 89206400 90661250 91436560 92837120 93685000 95120000 95933440 100040000 101054125 103479424 106024000 108674600 111508000 113216000 114295700 116046400 119916800 129349280 132530000 132583012 135843250 139103488 139385000 141520000 142730240 142869625 145058000 146240000 146298496 149896000 152192000 160064000 161686600 165728765 169638400 173879360 178412800 181322500 182873120 185674240 187370000 190240000 200080000 202108250 206958848 212048000 217349200 223016000 226432000 228591400 232092800 239833600 258698560 265060000 265166024 271686500 278206976 278770000 283040000 285739250 290116000 292480000 292596992 299792000 320128000 323373200 331457530 339276800 339608125 347758720 356825600 362645000 365746240 371348480 374740000 380480000 400160000 404216500 413917696 424096000 434698400 446032000 457182800 464185600 479667200 505270625 517397120 530120000 530332048 543373000 556413952 557540000 566080000 571478500 580232000 585193984 599584000 646746400 662915060 679216250 695517440 713651200 714348125 725290000 731492480 749480000 760960000 800320000 808433000 827835392 828643825 848192000 869396800 892064000 914365600 928371200 1010541250 1034794240 1060240000 1060664096 1086746000 1115080000 1132160000 1142957000 1160464000 1170387968 1199168000 1293492800 1325830120 1358432500 1391034880 1428696250 1450580000 1462984960 1498960000 1600640000 1616866000 1657287650 1696384000 1738793600 1784128000 1828731200 1856742400 2021082500 2069588480 2120480000 2121328192 2173492000 2230160000 2285914000 2320928000 2398336000 2586985600 2651660240 2716865000 2782069760 2857392500 2901160000 2925969920 2997920000 3233732000 3314575300 3477587200 3568256000 3657462400 4042165000 4139176960 4143219125 4240960000 4242656384 4346984000 4460320000 4571828000 4641856000 5173971200 5303320480 5433730000 5714785000 5802320000 5851939840 5995840000 6467464000 6629150600 6955174400 7314924800 8084330000 8286438250 8481920000 8485312768 8693968000 8920640000 9143656000 9283712000 10347942400 10606640960 10867460000 11429570000 11604640000 11991680000 12934928000 13258301200 13910348800 14629849600 16168660000 16572876500 16970625536 17387936000 17841280000 18287312000 20695884800 20716095625 21213281920 21734920000 22859140000 23209280000 25869856000 26516602400 29259699200 32337320000 33145753000 33941251072 34775872000 36574624000 41432191250 42426563840 43469840000 45718280000 46418560000 51739712000 53033204800 64674640000 66291506000 69551744000 73149248000 82864382500 84853127680 86939680000 91436560000 103479424000 106066409600 129349280000 132583012000 146298496000 165728765000 169706255360 173879360000 182873120000 212132819200 258698560000 265166024000 331457530000 347758720000 365746240000 424265638400 517397120000 530332048000 662915060000 731492480000 848531276800 1060664096000 1325830120000 2121328192000 2651660240000 4242656384000 5303320480000 10606640960000 21213281920000
• Sum of all divisors σ(n): 57200073804720
• Sum of proper divisors (its aliquot sum) s(n): 35986791884720
• 21213281920000 is an abundant number, because the sum of its proper divisors (35986791884720) is greater than itself. Its abundance is 14773509964720

Bases of 21213281920000

• Binary: 100110100101100011010001000100010010000000000₂
• Hexadecimal: 0x134B1A222400
• Base-36: 7IP8WCEF4

Squares and roots of 21213281920000

• 21213281920000 squared (21213281920000²) is 450003329817398886400000000
• 21213281920000 cubed (21213281920000³) is 9546047500355224698297253888000000000000
• The square root of 21213281920000 is 4605787.8717978317
• The cube root of 21213281920000 is 27682.3287047021

Scales and comparisons

• 21,213,281,920,000 seconds is equal to 674,516 years, 38 weeks, 6 days, 7 hours, 6 minutes, 40 seconds.
• To count from 1 to 21,213,281,920,000 would take you about one million, six hundred eighty-six thousand, two hundred ninety-one 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 21213281920000 cubic inches would be around 2306.9 feet tall.

Recreational maths with 21213281920000

• 21213281920000 backwards is 00002918231212
• The number of decimal digits it has is: 14
• The sum of 21213281920000's digits is 31
• More coming soon!