21128382720000

Names of 21128382720000

• Cardinal: 21128382720000 can be written as Twenty-one trillion, one hundred twenty-eight billion, three hundred eighty-two million, seven hundred twenty thousand.

Scientific notation

• Scientific notation: 2.112838272 × 10¹³

Factors of 21128382720000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 8248

Divisors of 21128382720000

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 64 72 75 80 90 96 100 120 125 128 144 150 160 180 192 200 225 229 240 250 256 288 300 320 360 375 384 400 450 458 480 500 512 576 600 625 640 687 720 750 768 800 900 916 960 1000 1024 1125 1145 1152 1200 1250 1280 1374 1440 1500 1536 1600 1800 1832 1875 1920 2000 2048 2061 2250 2290 2304 2400 2500 2560 2748 2880 3000 3072 3200 3435 3600 3664 3750 3840 4000 4122 4500 4580 4608 4800 5000 5120 5496 5625 5725 5760 6000 6144 6400 6870 7200 7328 7500 7680 8000 8009 8244 9000 9160 9216 9600 10000 10240 10305 10992 11250 11450 11520 12000 12800 13740 14400 14656 15000 15360 16000 16018 16488 17175 18000 18320 18432 19200 20000 20610 21984 22500 22900 23040 24000 24027 25600 27480 28625 28800 29312 30000 30720 32000 32036 32976 34350 36000 36640 38400 40000 40045 41220 43968 45000 45800 46080 48000 48054 51200 51525 54960 57250 57600 58624 60000 64000 64072 65952 68700 72000 72081 73280 76800 80000 80090 82440 85875 87936 90000 91600 92160 96000 96108 103050 109920 114500 115200 117248 120000 120135 128000 128144 131904 137400 143125 144000 144162 146560 153600 160000 160180 164880 171750 175872 180000 183200 192000 192216 200225 206100 219840 229000 230400 234496 240000 240270 256000 256288 257625 263808 274800 286250 288000 288324 293120 320000 320360 329760 343500 351744 360000 360405 366400 384000 384432 400450 412200 429375 439680 458000 460800 468992 480000 480540 512576 515250 527616 549600 572500 576000 576648 586240 600675 640000 640720 659520 687000 703488 720000 720810 732800 768000 768864 800900 824400 858750 879360 916000 960000 961080 1001125 1025152 1030500 1055232 1099200 1145000 1152000 1153296 1172480 1201350 1280000 1281440 1288125 1319040 1374000 1406976 1440000 1441620 1465600 1537728 1601800 1648800 1717500 1758720 1802025 1832000 1834061 1920000 1922160 2002250 2050304 2061000 2110464 2198400 2290000 2304000 2306592 2344960 2402700 2562880 2576250 2638080 2748000 2880000 2883240 2931200 3003375 3075456 3203600 3297600 3435000 3517440 3604050 3664000 3668122 3840000 3844320 4004500 4100608 4122000 4220928 4396800 4580000 4613184 4805400 5005625 5125760 5152500 5276160 5496000 5502183 5760000 5766480 5862400 6006750 6150912 6407200 6595200 6870000 7034880 7208100 7328000 7336244 7688640 8009000 8201216 8244000 8793600 9010125 9160000 9170305 9226368 9610800 10011250 10251520 10305000 10552320 10992000 11004366 11520000 11532960 11724800 12013500 12301824 12814400 13190400 13740000 14416200 14656000 14672488 15016875 15377280 16018000 16402432 16488000 16506549 17587200 18020250 18320000 18340610 18452736 19221600 20022500 20503040 20610000 21104640 21984000 22008732 23065920 24027000 24603648 25628800 26380800 27480000 27510915 28832400 29312000 29344976 30033750 30754560 32036000 32976000 33013098 35174400 36040500 36640000 36681220 36905472 38443200 40045000 41006080 41220000 43968000 44017464 45050625 45851525 46131840 48054000 49207296 51257600 52761600 54960000 55021830 57664800 58624000 58689952 60067500 61509120 64072000 65952000 66026196 72081000 73280000 73362440 73810944 76886400 80090000 82012160 82440000 82532745 87936000 88034928 90101250 91703050 92263680 96108000 102515200 105523200 109920000 110043660 115329600 117379904 120135000 123018240 128144000 131904000 132052392 137554575 144162000 146560000 146724880 147621888 153772800 160180000 164880000 165065490 175872000 176069856 180202500 183406100 184527360 192216000 205030400 219840000 220087320 229257625 230659200 234759808 240270000 246036480 256288000 263808000 264104784 275109150 288324000 293120000 293449760 307545600 320360000 329760000 330130980 352139712 360405000 366812200 369054720 384432000 410060800 412663725 439680000 440174640 458515250 461318400 469519616 480540000 512576000 527616000 528209568 550218300 576648000 586899520 615091200 640720000 659520000 660261960 687772875 704279424 720810000 733624400 738109440 768864000 825327450 879360000 880349280 917030500 922636800 939039232 961080000 1025152000 1056419136 1100436600 1146288125 1153296000 1173799040 1230182400 1281440000 1319040000 1320523920 1375545750 1408558848 1441620000 1467248800 1537728000 1650654900 1760698560 1834061000 1845273600 1878078464 1922160000 2050304000 2063318625 2112838272 2200873200 2292576250 2306592000 2347598080 2562880000 2638080000 2641047840 2751091500 2817117696 2883240000 2934497600 3075456000 3301309800 3438864375 3521397120 3668122000 3690547200 3756156928 3844320000 4126637250 4225676544 4401746400 4585152500 4613184000 4695196160 5125760000 5282095680 5502183000 5634235392 5766480000 5868995200 6150912000 6602619600 6877728750 7042794240 7336244000 7688640000 8253274500 8451353088 8803492800 9170305000 9226368000 9390392320 10251520000 10316593125 10564191360 11004366000 11268470784 11532960000 11737990400 13205239200 13755457500 14085588480 14672488000 15377280000 16506549000 16902706176 17606985600 18340610000 18452736000 18780784640 20633186250 21128382720 22008732000 23065920000 23475980800 26410478400 27510915000 28171176960 29344976000 30754560000 33013098000 33805412352 35213971200 36681220000 41266372500 42256765440 44017464000 46131840000 46951961600 52820956800 55021830000 56342353920 58689952000 66026196000 70427942400 73362440000 82532745000 84513530880 88034928000 92263680000 93903923200 105641913600 110043660000 117379904000 132052392000 140855884800 146724880000 165065490000 169027061760 176069856000 211283827200 220087320000 234759808000 264104784000 281711769600 293449760000 330130980000 352139712000 422567654400 440174640000 469519616000 528209568000 586899520000 660261960000 704279424000 845135308800 880349280000 1056419136000 1173799040000 1320523920000 1408558848000 1760698560000 2112838272000 2347598080000 2641047840000 3521397120000 4225676544000 5282095680000 7042794240000 10564191360000 21128382720000
• Sum of all divisors σ(n): 76596450430500
• Sum of proper divisors (its aliquot sum) s(n): 55468067710500
• 21128382720000 is an abundant number, because the sum of its proper divisors (55468067710500) is greater than itself. Its abundance is 34339684990500

Bases of 21128382720000

• Binary: 100110011011101010101101111110010100000000000₂
• Hexadecimal: 0x133755BF2800
• Base-36: 7HM8TJWG0

Squares and roots of 21128382720000

• 21128382720000 squared (21128382720000²) is 446408556362794598400000000
• 21128382720000 cubed (21128382720000³) is 9431890828315815443743899648000000000000
• The square root of 21128382720000 is 4596562.0544054445
• The cube root of 21128382720000 is 27645.3495160447

Scales and comparisons

• 21,128,382,720,000 seconds is equal to 671,817 years, 11 weeks, 1 day, 16 hours.
• To count from 1 to 21,128,382,720,000 would take you about one million, six hundred seventy-nine thousand, five hundred forty-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 21128382720000 cubic inches would be around 2303.8 feet tall.

Recreational maths with 21128382720000

• 21128382720000 backwards is 00002728382112
• 21128382720000 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21128382720000's digits is 36
• More coming soon!