21457736791680

Names of 21457736791680

• Cardinal: 21457736791680 can be written as Twenty-one trillion, four hundred fifty-seven billion, seven hundred thirty-six million, seven hundred ninety-one thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.145773679168 × 10¹³

Factors of 21457736791680

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 9400

Divisors of 21457736791680

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 128 140 149 160 168 192 210 224 240 280 298 320 336 384 420 447 448 480 560 596 640 672 745 840 894 896 960 1043 1120 1192 1344 1361 1490 1680 1788 1920 2086 2235 2240 2384 2688 2722 2980 3129 3360 3576 4083 4172 4470 4480 4768 5215 5444 5960 6258 6720 6805 7152 7873 8166 8344 8940 9527 9536 10430 10888 11920 12516 13440 13610 14304 15645 15746 16332 16688 17880 19054 19072 20415 20860 21776 23619 23840 25032 27220 28581 28608 31290 31492 32664 33376 35760 38108 39365 40830 41720 43552 47238 47635 47680 50064 54440 55111 57162 57216 62580 62984 65328 66752 71520 76216 78730 81660 83440 87104 94476 95270 95360 100128 108880 110222 114324 118095 125160 125968 130656 133504 142905 143040 152432 157460 163320 165333 166880 174208 188952 190540 200256 202789 217760 220444 228648 236190 250320 251936 261312 275555 285810 286080 304864 314920 326640 330666 333760 377904 381080 400512 405578 435520 440888 457296 472380 500640 503872 522624 551110 571620 608367 609728 629840 653280 661332 667520 755808 762160 811156 826665 871040 881776 914592 944760 1001280 1007744 1013945 1102220 1143240 1173077 1216734 1219456 1259680 1306560 1322664 1419523 1511616 1524320 1622312 1653330 1763552 1829184 1889520 2002560 2027890 2204440 2286480 2346154 2433468 2519360 2613120 2645328 2839046 3023232 3041835 3048640 3244624 3306660 3519231 3527104 3658368 3779040 4055780 4258569 4408880 4572960 4692308 4866936 5038720 5290656 5678092 5865385 6083670 6097280 6489248 6613320 7038462 7054208 7097615 7558080 8111560 8211539 8517138 8817760 9145920 9384616 9733872 10581312 10715153 11356184 11730770 12167340 12978496 13226640 14076924 14195230 15116160 16223120 16423078 17034276 17596155 17635520 18291840 18769232 19467744 21162624 21292845 21430306 22712368 23461540 24334680 24634617 25956992 26453280 28153848 28390460 32145459 32446240 32846156 34068552 35192310 35271040 37538464 38935488 41057695 42585690 42860612 45424736 46923080 48669360 49269234 52906560 53575765 56307696 56780920 64290918 64892480 65692312 68137104 70384620 75006071 75076928 77870976 82115390 85171380 85721224 90849472 93846160 97338720 98538468 105813120 107151530 112615392 113561840 123173085 128581836 129784960 131384624 136274208 140769240 150012142 150153856 160727295 164230780 170342760 171442448 181698944 187692320 194677440 197076936 214303060 225018213 225230784 227123680 246346170 257163672 262769248 272548416 281538480 300024284 321454590 328461560 340685520 342884896 375030355 375384640 389354880 394153872 428606120 450036426 450461568 454247360 492692340 514327344 525538496 545096832 563076960 600048568 642909180 656923120 681371040 685769792 750060710 750769280 788307744 857212240 900072852 908494720 985384680 1028654688 1051076992 1125091065 1126153920 1200097136 1285818360 1313846240 1362742080 1371539584 1500121420 1576615488 1596557797 1714424480 1800145704 1970769360 2057309376 2250182130 2252307840 2400194272 2571636720 2627692480 2725484160 3000242840 3153230976 3193115594 3428848960 3600291408 3941538720 4114618752 4500364260 4789673391 4800388544 5143273440 5255384960 6000485680 6386231188 6857697920 7200582816 7883077440 7982788985 9000728520 9579346782 9600777088 10286546880 11175904579 12000971360 12772462376 14401165632 15766154880 15965577970 18001457040 19158693564 20573093760 22351809158 23948366955 24001942720 25544924752 28802331264 31931155940 33527713737 36002914080 38317387128 44703618316 47896733910 48003885440 51089849504 55879522895 63862311880 67055427474 72005828160 76634774256 89407236632 95793467820 102179699008 111759045790 127724623760 134110854948 144011656320 153269548512 167638568685 178814473264 191586935640 204359398016 223518091580 255449247520 268221709896 306539097024 335277137370 357628946528 383173871280 447036183160 510898495040 536443419792 613078194048 670554274740 715257893056 766347742560 894072366320 1021796990080 1072886839584 1341108549480 1430515786112 1532695485120 1788144732640 2145773679168 2682217098960 3065390970240 3576289465280 4291547358336 5364434197920 7152578930560 10728868395840 21457736791680
• Sum of all divisors σ(n): 78759905472000
• Sum of proper divisors (its aliquot sum) s(n): 57302168680320
• 21457736791680 is an abundant number, because the sum of its proper divisors (57302168680320) is greater than itself. Its abundance is 35844431888640

Bases of 21457736791680

• Binary: 100111000010000000100110001110111011010000000₂
• Hexadecimal: 0x138404C77680
• Base-36: 7LTJQGOLC

Squares and roots of 21457736791680

• 21457736791680 squared (21457736791680²) is 460434468221017499717222400
• 21457736791680 cubed (21457736791680³) is 9879881628903742961527367088617029632000
• The square root of 21457736791680 is 4632249.6469512521
• The cube root of 21457736791680 is 27788.2568588263

Scales and comparisons

• 21,457,736,791,680 seconds is equal to 682,289 years, 34 weeks, 1 day, 2 hours, 8 minutes.
• To count from 1 to 21,457,736,791,680 would take you about one million, seven hundred five thousand, seven hundred twenty-four 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 21457736791680 cubic inches would be around 2315.7 feet tall.

Recreational maths with 21457736791680

• 21457736791680 backwards is 08619763775412
• The number of decimal digits it has is: 14
• The sum of 21457736791680's digits is 66
• More coming soon!