21228318720000

Names of 21228318720000

• Cardinal: 21228318720000 can be written as Twenty-one trillion, two hundred twenty-eight billion, three hundred eighteen million, seven hundred twenty thousand.

Scientific notation

• Scientific notation: 2.122831872 × 10¹³

Factors of 21228318720000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 23
• Sum of prime factors: 16470

Divisors of 21228318720000

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 28 30 32 35 36 40 42 45 48 50 56 60 63 64 70 72 75 80 84 90 96 100 105 112 120 125 126 128 140 144 150 160 168 175 180 192 200 210 224 225 240 250 252 256 280 288 300 315 320 336 350 360 375 384 400 420 448 450 480 500 504 512 525 560 576 600 625 630 640 672 700 720 750 768 800 840 875 896 900 960 1000 1008 1024 1050 1120 1125 1152 1200 1250 1260 1280 1344 1400 1440 1500 1536 1575 1600 1680 1750 1792 1800 1875 1920 2000 2016 2048 2100 2240 2250 2304 2400 2500 2520 2560 2625 2688 2800 2880 3000 3072 3150 3200 3360 3500 3584 3600 3750 3840 4000 4032 4096 4200 4375 4480 4500 4608 4800 5000 5040 5120 5250 5376 5600 5625 5760 6000 6144 6300 6400 6720 7000 7168 7200 7500 7680 7875 8000 8064 8192 8400 8750 8960 9000 9216 9600 10000 10080 10240 10500 10752 11200 11250 11520 12000 12288 12600 12800 13125 13440 14000 14336 14400 15000 15360 15750 16000 16128 16384 16453 16800 17500 17920 18000 18432 19200 20000 20160 20480 21000 21504 22400 22500 23040 24000 24576 25200 25600 26250 26880 28000 28672 28800 30000 30720 31500 32000 32256 32768 32906 33600 35000 35840 36000 36864 38400 39375 40000 40320 40960 42000 43008 44800 45000 46080 48000 49152 49359 50400 51200 52500 53760 56000 57344 57600 60000 61440 63000 64000 64512 65812 67200 70000 71680 72000 73728 76800 78750 80000 80640 81920 82265 84000 86016 89600 90000 92160 96000 98304 98718 100800 102400 105000 107520 112000 114688 115171 115200 120000 122880 126000 128000 129024 131624 134400 140000 143360 144000 147456 148077 153600 157500 160000 161280 163840 164530 168000 172032 179200 180000 184320 192000 197436 201600 204800 210000 215040 224000 229376 230342 230400 240000 245760 246795 252000 256000 258048 263248 268800 280000 286720 288000 294912 296154 307200 315000 320000 322560 329060 336000 344064 345513 358400 360000 368640 384000 394872 403200 409600 411325 420000 430080 448000 460684 460800 480000 491520 493590 504000 512000 516096 526496 537600 560000 573440 575855 576000 592308 614400 630000 640000 645120 658120 672000 688128 691026 716800 720000 737280 740385 768000 789744 806400 819200 822650 840000 860160 896000 921368 921600 960000 987180 1008000 1024000 1032192 1036539 1052992 1075200 1120000 1146880 1151710 1152000 1184616 1228800 1233975 1260000 1280000 1290240 1316240 1344000 1382052 1433600 1440000 1474560 1480770 1536000 1579488 1612800 1645300 1680000 1720320 1727565 1792000 1842736 1843200 1920000 1974360 2016000 2048000 2056625 2064384 2073078 2105984 2150400 2240000 2303420 2304000 2369232 2457600 2467950 2520000 2560000 2580480 2632480 2688000 2764104 2867200 2879275 2880000 2961540 3072000 3158976 3225600 3290600 3360000 3440640 3455130 3584000 3685472 3686400 3701925 3840000 3948720 4032000 4096000 4113250 4146156 4211968 4300800 4480000 4606840 4608000 4738464 4935900 5040000 5120000 5160960 5182695 5264960 5376000 5528208 5734400 5758550 5760000 5923080 6144000 6169875 6317952 6451200 6581200 6720000 6910260 7168000 7370944 7372800 7403850 7680000 7897440 8064000 8226500 8292312 8423936 8601600 8637825 8960000 9213680 9216000 9476928 9871800 10080000 10240000 10283125 10321920 10365390 10529920 10752000 11056416 11517100 11520000 11846160 12288000 12339750 12635904 12902400 13162400 13440000 13820520 14336000 14396375 14741888 14807700 15360000 15794880 16128000 16453000 16584624 16847872 17203200 17275650 17920000 18427360 18432000 18509625 18953856 19743600 20160000 20480000 20566250 20730780 21059840 21504000 22112832 23034200 23040000 23692320 24679500 25271808 25804800 25913475 26324800 26880000 27641040 28672000 28792750 29483776 29615400 30720000 30849375 31589760 32256000 32906000 33169248 33695744 34551300 35840000 36854720 36864000 37019250 37907712 39487200 40320000 41132500 41461560 42119680 43008000 43189125 44225664 46068400 46080000 47384640 49359000 50543616 51609600 51826950 52649600 53760000 55282080 57585500 58967552 59230800 61440000 61698750 63179520 64512000 65812000 66338496 67391488 69102600 71680000 71981875 73709440 74038500 75815424 78974400 80640000 82265000 82923120 84239360 86016000 86378250 88451328 92136800 92160000 92548125 94769280 98718000 101087232 103653900 105299200 107520000 110564160 115171000 117935104 118461600 123397500 126359040 129024000 129567375 131624000 132676992 134782976 138205200 143360000 143963750 147418880 148077000 151630848 157948800 161280000 164530000 165846240 168478720 172756500 176902656 184273600 184320000 185096250 189538560 197436000 202174464 207307800 210598400 215040000 215945625 221128320 230342000 235870208 236923200 246795000 252718080 258048000 259134750 263248000 265353984 269565952 276410400 287927500 294837760 296154000 303261696 315897600 322560000 329060000 331692480 336957440 345513000 353805312 368547200 370192500 379077120 394872000 404348928 414615600 421196800 430080000 431891250 442256640 460684000 471740416 473846400 493590000 505436160 518269500 526496000 530707968 539131904 552820800 575855000 589675520 592308000 606523392 631795200 645120000 647836875 658120000 663384960 673914880 691026000 707610624 737094400 740385000 758154240 789744000 808697856 829231200 842393600 863782500 884513280 921368000 943480832 947692800 987180000 1010872320 1036539000 1052992000 1061415936 1105641600 1151710000 1179351040 1184616000 1213046784 1263590400 1290240000 1295673750 1316240000 1326769920 1347829760 1382052000 1415221248 1474188800 1480770000 1516308480 1579488000 1617395712 1658462400 1684787200 1727565000 1769026560 1842736000 1886961664 1895385600 1974360000 2021744640 2073078000 2105984000 2122831872 2211283200 2303420000 2358702080 2369232000 2426093568 2527180800 2591347500 2632480000 2653539840 2695659520 2764104000 2830442496 2948377600 2961540000 3032616960 3158976000 3316924800 3369574400 3455130000 3538053120 3685472000 3773923328 3790771200 3948720000 4043489280 4146156000 4211968000 4245663744 4422566400 4606840000 4717404160 4738464000 4852187136 5054361600 5182695000 5264960000 5307079680 5528208000 5660884992 5896755200 5923080000 6065233920 6317952000 6633849600 6739148800 6910260000 7076106240 7370944000 7581542400 7897440000 8086978560 8292312000 8423936000 8491327488 8845132800 9213680000 9434808320 9476928000 10108723200 10365390000 10529920000 10614159360 11056416000 11321769984 11793510400 11846160000 12130467840 12635904000 13267699200 13478297600 13820520000 14152212480 14741888000 15163084800 15794880000 16584624000 16847872000 16982654976 17690265600 18427360000 18869616640 18953856000 20217446400 20730780000 21059840000 21228318720 22112832000 23587020800 23692320000 24260935680 25271808000 26535398400 27641040000 28304424960 29483776000 30326169600 31589760000 33169248000 33695744000 33965309952 35380531200 36854720000 37907712000 40434892800 41461560000 42119680000 42456637440 44225664000 47174041600 47384640000 50543616000 53070796800 55282080000 56608849920 58967552000 60652339200 63179520000 66338496000 67391488000 70761062400 73709440000 75815424000 82923120000 84239360000 84913274880 88451328000 94348083200 94769280000 101087232000 106141593600 110564160000 117935104000 121304678400 126359040000 132676992000 141522124800 147418880000 151630848000 165846240000 168478720000 169826549760 176902656000 189538560000 202174464000 212283187200 221128320000 235870208000 252718080000 265353984000 283044249600 294837760000 303261696000 331692480000 336957440000 353805312000 379077120000 424566374400 442256640000 471740416000 505436160000 530707968000 589675520000 606523392000 663384960000 707610624000 758154240000 849132748800 884513280000 1010872320000 1061415936000 1179351040000 1326769920000 1415221248000 1516308480000 1769026560000 2122831872000 2358702080000 2653539840000 3032616960000 3538053120000 4245663744000 5307079680000 7076106240000 10614159360000 21228318720000
• Sum of all divisors σ(n): 87584886177360
• Sum of proper divisors (its aliquot sum) s(n): 66356567457360
• 21228318720000 is an abundant number, because the sum of its proper divisors (66356567457360) is greater than itself. Its abundance is 45128248737360

Bases of 21228318720000

• Binary: 100110100111010011010011001011000000000000000₂
• Hexadecimal: 0x134E9A658000
• Base-36: 7IW5KV7K0

Squares and roots of 21228318720000

• 21228318720000 squared (21228318720000²) is 450641515677902438400000000
• 21228318720000 cubed (21228318720000³) is 9566361723274389823420366848000000000000
• The square root of 21228318720000 is 4607419.9634936687
• The cube root of 21228318720000 is 27688.8679305873

Scales and comparisons

• 21,228,318,720,000 seconds is equal to 674,994 years, 45 weeks, 2 days, 8 hours.
• To count from 1 to 21,228,318,720,000 would take you about one million, six hundred eighty-seven thousand, four hundred eighty-seven 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 21228318720000 cubic inches would be around 2307.4 feet tall.

Recreational maths with 21228318720000

• 21228318720000 backwards is 00002781382212
• 21228318720000 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21228318720000's digits is 36
• More coming soon!