21128697505370

Names of 21128697505370

• Cardinal: 21128697505370 can be written as Twenty-one trillion, one hundred twenty-eight billion, six hundred ninety-seven million, five hundred five thousand, three hundred seventy.

Scientific notation

• Scientific notation: 2.112869750537 × 10¹³

Factors of 21128697505370

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3233

Divisors of 21128697505370

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 5 7 10 13 14 26 31 35 62 65 67 70 91 130 134 155 169 182 217 307 310 335 338 403 434 455 469 614 670 806 845 871 910 938 1085 1183 1535 1690 1742 2015 2077 2149 2170 2345 2366 2801 2821 3070 3991 4030 4154 4298 4355 4690 5239 5602 5642 5915 6097 7982 8710 9517 10385 10478 10745 11323 11830 12194 14005 14105 14539 19034 19607 19955 20569 20770 21490 22646 26195 27001 27937 28010 28210 29078 30485 36413 36673 39214 39910 41138 47585 51883 52390 54002 55874 56615 60970 66619 72695 72826 73346 79261 86831 95170 98035 102845 103766 113230 123721 133238 135005 139685 143983 145390 158522 173662 182065 183365 187667 189007 196070 205690 247442 254891 259415 267397 270010 279370 287966 333095 351013 363181 364130 366730 375334 378014 396305 434155 473369 509782 518830 534794 607817 618605 637639 666190 702026 719915 726362 792610 859907 866047 868310 938335 945035 946738 1128803 1215634 1237210 1274455 1275278 1313669 1336985 1439830 1608373 1719814 1732094 1755065 1815905 1871779 1876670 1890070 2257606 2366845 2439671 2457091 2548910 2627338 2673970 3039085 3188195 3216746 3313583 3476161 3510130 3631810 3743558 4299535 4330235 4463473 4733690 4879342 4914182 5644015 5817677 6019349 6078170 6376390 6568345 6627166 6952322 7901621 8041865 8289307 8599070 8660470 8926946 9358895 11178791 11258611 11288030 11635354 12038698 12198355 12285455 13136690 14674439 15803242 16083730 16567915 16578614 17077697 17380805 18717790 22317365 22357582 22517222 24333127 24396710 24570910 26657117 29088385 29348878 30096745 31715723 33135830 34155394 34761610 39508105 40723739 41446535 44634730 48666254 53314234 55893955 56293055 57613769 58025149 58176770 60193490 63431446 73372195 75629801 78251537 79016210 81447478 82893070 85388485 102721073 107760991 111787910 112586110 115227538 116050298 121665635 133285585 145324283 146744390 151259602 156503074 158578615 170776970 186599819 203618695 205442146 215521982 222010061 243331270 266571170 288068845 290125745 290648566 317157230 346542521 373199638 378149005 391257685 403296383 407237390 444020122 513605365 529408607 538804955 576137690 580251490 693085042 726621415 748978997 754326937 756298010 782515370 806592766 932999095 983187413 1017269981 1027210730 1058817214 1077609910 1110050305 1453242830 1497957994 1508653874 1732712605 1786026839 1865998190 1966374826 2016481915 2034539962 2220100610 2425797647 2647043035 3465425210 3572053678 3744894985 3771634685 4032963830 4505052773 4851595294 4915937065 5086349905 5242852979 5294086070 6882311891 7489789970 7543269370 8930134195 9010105546 9736726961 9831874130 10172699810 10485705958 12128988235 12502187873 13764623782 17860268390 19473453922 22525263865 23218348907 24257976470 25004375746 26214264895 31535369411 34411559455 45050527730 46436697814 48683634805 52428529790 62510939365 63070738822 68157088727 68823118910 97367269610 116091744535 125021878730 136314177454 157676847055 162528442349 232183489070 301838535791 315353694110 325056884698 340785443635 603677071582 681570887270 812642211745 1509192678955 1625284423490 2112869750537 3018385357910 4225739501074 10564348752685 21128697505370
• Sum of all divisors σ(n): 49487022047232
• Sum of proper divisors (its aliquot sum) s(n): 28358324541862
• 21128697505370 is an abundant number, because the sum of its proper divisors (28358324541862) is greater than itself. Its abundance is 7229627036492

Bases of 21128697505370

• Binary: 100110011011101101000100000100110011001011010₂
• Hexadecimal: 0x13376882665A
• Base-36: 7HME0YUE2

Squares and roots of 21128697505370

• 21128697505370 squared (21128697505370²) is 446421858273428461178836900
• 21128697505370 cubed (21128697505370³) is 9432312403244427623066449098468104153000
• The square root of 21128697505370 is 4596596.2956703083
• The cube root of 21128697505370 is 27645.4868085905

Scales and comparisons

• 21,128,697,505,370 seconds is equal to 671,827 years, 11 weeks, 5 days, 22 minutes, 50 seconds.
• To count from 1 to 21,128,697,505,370 would take you about one million, six hundred seventy-nine thousand, five hundred sixty-eight 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 21128697505370 cubic inches would be around 2303.8 feet tall.

Recreational maths with 21128697505370

• 21128697505370 backwards is 07350579682112
• The number of decimal digits it has is: 14
• The sum of 21128697505370's digits is 56
• More coming soon!