21398213768490

Names of 21398213768490

• Cardinal: 21398213768490 can be written as Twenty-one trillion, three hundred ninety-eight billion, two hundred thirteen million, seven hundred sixty-eight thousand, four hundred ninety.

Scientific notation

• Scientific notation: 2.139821376849 × 10¹³

Factors of 21398213768490

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 45593

Divisors of 21398213768490

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 17 18 26 27 30 34 39 41 45 51 54 65 78 82 85 90 102 117 123 130 135 153 170 193 195 205 221 234 246 255 270 306 351 369 386 390 410 442 459 510 533 579 585 615 663 697 702 738 765 918 965 1066 1105 1107 1158 1170 1230 1326 1394 1530 1599 1737 1755 1845 1930 1989 2091 2210 2214 2295 2509 2665 2895 3198 3281 3315 3474 3485 3510 3690 3978 4182 4590 4797 5018 5211 5330 5535 5790 5967 6273 6562 6630 6970 7527 7913 7995 8685 9061 9594 9843 9945 10422 10455 11070 11934 12545 12546 14391 15054 15826 15990 16405 17370 18122 18819 19686 19890 20910 22581 23739 23985 25090 26055 27183 28782 29529 29835 31365 32810 37635 37638 39565 42653 45162 45305 45319 47478 47970 49215 52110 54366 59058 59670 62730 67743 71217 71955 75270 79130 81549 85306 88587 90610 90638 94095 98430 102869 112905 118695 127959 134521 135486 135915 135957 142434 143910 147645 163098 177174 188190 205738 213265 213651 225810 226595 237390 244647 255918 269042 271830 271914 295290 308607 338715 356085 383877 403563 407745 407871 426530 427302 442935 453190 489294 514345 589147 617214 639795 672605 677430 679785 712170 767754 770423 807126 815490 815742 885870 925821 1028690 1068255 1151631 1178294 1210689 1223235 1223613 1279590 1345210 1359570 1540846 1543035 1748773 1767441 1851642 1858079 1919385 2017815 2039355 2136510 2303262 2311269 2421378 2446470 2447226 2777463 2945735 3086070 3497546 3534882 3632067 3716158 3838770 3852115 4035630 4078710 4622538 4629105 5246319 5302323 5554926 5574237 5758155 5891470 6053445 6118065 6933807 7264134 7704230 8743865 8746567 8837205 9258210 9290395 10015499 10492638 10604646 11148474 11516310 11556345 12106890 12236130 13867614 13887315 15738957 15906969 16722711 17487730 17493134 17674410 18160335 18580790 20030998 20801421 23112690 24155027 26231595 26239701 26511615 27774630 27871185 30046497 31477914 31587343 31813938 33445422 34669035 36320670 41602842 43732835 47216871 48310054 50077495 50168133 52463190 52479402 53023230 55742370 60092994 63174686 69338070 72465081 78694785 78719103 79534845 83613555 87465670 90139491 94433742 94762029 100154990 100336266 104007105 113705371 120775135 131198505 144930162 148691639 150232485 157389570 157438206 157936715 159069690 167227110 180278982 189524058 208014210 217395243 227410742 236084355 236157309 241550270 250840665 262397010 270418473 284286087 297383278 300464970 315873430 341116113 358609247 362325405 393595515 410635459 434790486 446074917 450697455 472168710 472314618 473810145 501681330 540836946 568526855 568572174 652185729 682232226 717218494 724650810 743458195 787191030 821270918 852858261 892149834 901394910 947620290 1023348339 1075827741 1086976215 1137053710 1180786545 1231906377 1304371458 1338224751 1352092365 1421430435 1486916390 1705580565 1705716522 1793046235 1932991307 2046696678 2053177295 2151655482 2173952430 2230374585 2361573090 2463812754 2676449502 2704184730 2842860870 3070045017 3227483223 3260928645 3411161130 3586092470 3695719131 3865982614 4014674253 4106354590 4264291305 4460749170 4661920211 5116741695 5379138705 5798973921 6096357199 6140090034 6159531885 6454966446 6521857290 6691123755 7391438262 8029348506 8528582610 9323840422 9664956535 9682449669 10233483390 10758277410 11087157393 11597947842 12192714398 12319063770 13382247510 13985760633 15350225085 16137416115 17396921763 18289071597 18478595655 19329913070 19364899338 20073371265 22174314786 23309601055 27971521266 28994869605 30481785995 30700450170 32274832230 34793843526 36578143194 36957191310 40146742530 41957281899 46619202110 48412248345 52190765289 54867214791 55435786965 57989739210 60963571990 69928803165 79252643587 83914563798 86984608815 91445357985 96824496690 104381530578 109734429582 110871573930 125871845697 139857606330 158505287174 164601644373 173969217630 182890715970 209786409495 237757930761 251743691394 260953826445 274336073955 329203288746 396263217935 419572818990 475515861522 521907652890 548672147910 629359228485 713273792283 792526435870 823008221865 1188789653805 1258718456970 1426547584566 1646016443730 2139821376849 2377579307610 3566368961415 4279642753698 7132737922830 10699106884245 21398213768490
• Sum of all divisors σ(n): 66999869798400
• Sum of proper divisors (its aliquot sum) s(n): 45601656029910
• 21398213768490 is an abundant number, because the sum of its proper divisors (45601656029910) is greater than itself. Its abundance is 24203442261420

Bases of 21398213768490

• Binary: 100110111011000101000111011100011010100101010₂
• Hexadecimal: 0x137628EE352A
• Base-36: 7L27BZPYI

Squares and roots of 21398213768490

• 21398213768490 squared (21398213768490²) is 457883552481995007316880100
• 21398213768490 cubed (21398213768490³) is 9797890137085339078391502048210488049000
• The square root of 21398213768490 is 4625820.3346530873
• The cube root of 21398213768490 is 27762.5385075623

Scales and comparisons

• 21,398,213,768,490 seconds is equal to 680,397 years, 3 days, 5 hours, 1 minute, 30 seconds.
• To count from 1 to 21,398,213,768,490 would take you about one million, seven hundred thousand, nine hundred ninety-two 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 21398213768490 cubic inches would be around 2313.5 feet tall.

Recreational maths with 21398213768490

• 21398213768490 backwards is 09486731289312
• The number of decimal digits it has is: 14
• The sum of 21398213768490's digits is 63
• More coming soon!