1991454021396

Names of 1991454021396

• Cardinal: 1991454021396 can be written as One trillion, nine hundred ninety-one billion, four hundred fifty-four million, twenty-one thousand, three hundred ninety-six.

Scientific notation

• Scientific notation: 1.991454021396 × 10¹²

Factors of 1991454021396

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3208

Divisors of 1991454021396

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 23 27 28 29 36 42 46 49 54 58 61 63 69 81 84 87 92 98 108 116 122 126 138 147 161 162 174 183 189 196 203 207 244 252 261 276 294 322 324 348 366 378 406 414 427 441 483 522 549 567 588 609 621 644 667 732 756 783 812 828 854 882 966 1044 1098 1127 1134 1218 1242 1281 1323 1334 1403 1421 1449 1566 1647 1708 1764 1769 1827 1863 1932 2001 2196 2254 2268 2349 2436 2484 2562 2646 2668 2806 2842 2898 2989 3083 3132 3294 3381 3538 3654 3726 3843 3969 4002 4209 4263 4347 4508 4669 4698 4941 5124 5292 5307 5481 5612 5684 5796 5978 6003 6166 6588 6762 7076 7308 7452 7686 7938 8004 8418 8526 8694 8967 9249 9338 9396 9821 9882 10143 10614 10962 11529 11956 12006 12332 12383 12627 12789 13041 13524 14007 15372 15876 15921 16443 16836 17052 17388 17934 18009 18498 18676 19642 19764 20286 21228 21581 21924 23058 24012 24766 25254 25578 26082 26901 27747 28014 29463 30429 31842 32683 32886 34587 35868 36018 36996 37149 37881 38367 39284 40572 40687 42021 43162 46116 47763 49532 50508 51156 52164 53802 54027 55494 56028 58926 60858 63684 64743 65366 65772 68747 69174 70909 72036 74298 75762 76734 80703 81374 83241 84042 86324 86681 88389 89407 91287 95526 98049 107604 108054 110988 111447 113643 115101 117852 121716 122061 126063 129486 130732 137494 138348 141818 143289 148596 151067 151524 153468 161406 162748 166482 168084 173362 176778 178814 182574 188063 191052 194229 196098 206241 212727 216108 222894 227286 230202 242109 244122 249723 252126 258972 260043 265167 268221 274988 283636 284809 286578 294147 302134 322812 332964 334341 346724 353556 357628 365148 366183 376126 378189 388458 392196 412482 425454 445788 453201 454572 460404 484218 488244 496363 499446 504252 520086 530334 536442 564189 569618 573156 582687 588294 604268 618723 625849 638181 668682 732366 752252 756378 776916 780129 795501 804663 824964 850908 854427 882441 906402 968436 992726 998892 1003023 1040172 1060668 1072884 1098549 1128378 1139236 1165374 1176588 1237446 1251698 1276362 1316441 1337364 1359603 1464732 1489089 1512756 1560258 1591002 1609326 1692567 1708854 1748061 1764882 1812804 1856169 1877547 1914543 1985452 1993663 2006046 2056361 2197098 2256756 2330748 2340387 2413989 2474892 2503396 2552724 2563281 2632882 2647323 2719206 2978178 3120516 3182004 3218652 3295647 3385134 3417708 3474541 3496122 3529764 3712338 3755094 3829086 3949323 3987326 4012092 4078809 4112722 4325449 4380943 4394196 4467267 4680774 4827978 5077701 5126562 5265764 5294646 5438412 5453827 5568507 5632641 5743629 5956356 5980989 6169083 6591294 6770268 6949082 6992244 7021161 7241967 7424676 7510188 7658172 7689843 7898646 7974652 8157618 8225444 8650898 8761886 8934534 9215087 9361548 9655956 10155402 10253124 10423623 10589292 10907654 11137014 11265282 11487258 11847969 11961978 12236427 12338166 12976347 13142829 13182588 13401801 13898164 14042322 14394527 14483934 15233103 15379686 15797292 16315236 16361481 16897923 17301796 17523772 17869068 17942967 18430174 18507249 20310804 20847246 21815308 22274028 22530564 22974516 23069529 23695938 23923956 24472854 24676332 25952694 26285658 26803602 27645261 28084644 28789054 28967868 30278143 30466206 30759372 31270869 32722962 33795846 35543907 35885934 36860348 37014498 38176789 38929041 39428487 40205403 41694492 43183581 46139058 47391876 48945708 49084443 50693769 51905388 52571316 53607204 53828901 55290522 55521747 57578108 60556286 60932412 62541738 65445924 67591692 71087814 71771868 74028996 76353578 77858082 78856974 80410806 82935783 86367162 90834429 92278116 93812607 98168886 100761689 101387538 106631721 107657802 110581044 111043494 114530367 116787123 118285461 121112572 125083476 125438021 129550743 142175628 147253329 152707156 155716164 157713948 160821612 161486703 165871566 166565241 172734324 181668858 187625214 196337772 201523378 202775076 211947001 213263442 215315604 222086988 229060734 233574246 236570922 248807349 250876042 259101486 267237523 272503287 281437821 294506658 302285067 322973406 331743132 333130482 343591101 350361369 354856383 363337716 375250428 376314063 388652229 403046756 423894002 426526884 441759987 458121468 467148492 473141844 497614698 501752084 518202972 534475046 545006574 562875642 589013316 604570134 635841003 645946812 666260964 687182202 700722738 709712766 746422047 752628126 777304458 801712569 817509861 847788004 878066147 883519974 906855201 995229396 1030773303 1068950092 1090013148 1125751284 1128942189 1165956687 1209140268 1271682006 1374364404 1401445476 1419425532 1492844094 1505256252 1554608916 1603425138 1635019722 1756132294 1767039948 1813710402 1907523009 2061546606 2257884378 2331913374 2405137707 2452529583 2543364012 2634198441 2720565603 2985688188 3092319909 3206850276 3270039444 3386826567 3512264588 3627420804 3815046018 4123093212 4515768756 4663826748 4810275414 4905059166 5268396882 5441131206 5722569027 6146463029 6184639818 6773653134 7215413121 7630092036 7902595323 8161696809 9620550828 9810118332 10160479701 10536793764 10882262412 11445138054 12292926058 12369279636 13547306268 14430826242 15805190646 16323393618 17167707081 18439389087 20320959402 21646239363 22890276108 23707785969 24585852116 28861652484 31610381292 32646787236 34335414162 36878778174 40641918804 43292478726 47415571938 55318167261 68670828324 71123357907 73757556348 86584957452 94831143876 110636334522 142246715814 165954501783 221272669044 284493431628 331909003566 497863505349 663818007132 995727010698 1991454021396
• Sum of all divisors σ(n): 6646558343040
• Sum of proper divisors (its aliquot sum) s(n): 4655104321644
• 1991454021396 is an abundant number, because the sum of its proper divisors (4655104321644) is greater than itself. Its abundance is 2663650300248

Bases of 1991454021396

• Binary: 11100111110101011111010001101011100010100₂
• Hexadecimal: 0x1CFABE8D714
• Base-36: PEV0B190

Squares and roots of 1991454021396

• 1991454021396 squared (1991454021396²) is 3965889119334300025788816
• 1991454021396 cubed (1991454021396³) is 7897885835108932720833924130241507136
• The square root of 1991454021396 is 1411188.8680810943
• The cube root of 1991454021396 is 12581.2394473289

Scales and comparisons

• 1,991,454,021,396 seconds is equal to 63,322 years, 4 weeks, 8 hours, 36 minutes, 36 seconds.
• To count from 1 to 1,991,454,021,396 would take you about one hundred fifty-eight thousand, three hundred five 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 1991454021396 cubic inches would be around 1048.4 feet tall.

Recreational maths with 1991454021396

• 1991454021396 backwards is 6931204541991
• 1991454021396 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1991454021396's digits is 54
• More coming soon!