21502378204020

Names of 21502378204020

• Cardinal: 21502378204020 can be written as Twenty-one trillion, five hundred two billion, three hundred seventy-eight million, two hundred four thousand and twenty.

Scientific notation

• Scientific notation: 2.150237820402 × 10¹³

Factors of 21502378204020

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 78052

Divisors of 21502378204020

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 29 30 35 36 42 45 49 58 60 63 70 84 87 90 98 105 116 126 140 145 147 174 180 196 203 210 245 252 261 290 294 315 348 406 420 435 441 490 522 580 588 609 630 735 812 870 882 980 1015 1044 1093 1218 1260 1305 1421 1470 1740 1764 1827 2030 2186 2205 2436 2610 2842 2940 3045 3279 3654 4060 4263 4372 4410 5220 5465 5684 6090 6558 7105 7308 7651 8526 8820 9135 9837 10930 12180 12789 13116 14210 15302 16395 17052 18270 19674 21315 21860 22953 25578 28420 30604 31697 32790 36540 38255 39348 42630 45906 49185 51156 53557 63394 63945 65580 68859 76510 76913 85260 91812 95091 98370 107114 114765 126788 127890 137718 153020 153826 158485 160671 190182 196740 214228 221879 229530 230739 255780 267785 275436 285273 307652 316970 321342 344295 380364 384565 443758 459060 461478 475455 482013 535570 538391 570546 633940 642684 665637 688590 692217 769130 803355 887516 922956 950910 964026 1071140 1076782 1109395 1141092 1153695 1331274 1377180 1384434 1426365 1538260 1553153 1606710 1615173 1901820 1928052 1996911 2153564 2218790 2230477 2307390 2410065 2662548 2691955 2768868 2852730 3106306 3213420 3230346 3328185 3461085 3768737 3993822 4437580 4460954 4614780 4659459 4820130 4845519 5383910 5705460 6212612 6460692 6656370 6691431 6922170 7537474 7765765 7987644 8075865 8921908 9318918 9640260 9691038 9984555 10767820 11152385 11306211 13312740 13382862 13844340 13978377 15074948 15531530 15613339 16151730 18637836 18843685 19382076 19969110 20074293 22304770 22612422 23297295 24227595 26765724 27956754 31063060 31226678 32303460 33457155 33918633 37687370 39938220 40148586 44609540 45224844 46594590 46840017 48455190 55913508 56531055 62453356 66914310 67837266 69891885 75374740 78066695 80297172 84065909 93189180 93680034 96910380 100371465 109293373 113062110 133828620 135674532 139783770 140520051 156133390 168131818 169593165 187360068 200742930 218586746 226124220 234200085 252197727 279567540 281040102 312266780 327880119 336263636 339186330 401485860 420329545 437173492 468400170 504395454 546466865 562080204 588461363 655760238 678372660 702600255 756593181 840659090 936800340 983640357 1008790908 1092933730 1176922726 1260988635 1311520476 1405200510 1513186362 1639400595 1681318180 1765384089 1967280714 2185867460 2353845452 2437911361 2521977270 2810401020 2942306815 3026372724 3278801190 3530768178 3782965905 3934561428 4119229541 4875822722 4918201785 5043954540 5296152267 5884613630 6557602380 7061536356 7313734083 7565931810 8238459082 8826920445 9751645444 9836403570 10592304534 11769227260 12189556805 12357688623 14627468166 15131863620 16476918164 17065379527 17653840890 19672807140 20596147705 21184609068 21941202249 24379113610 24715377246 26480761335 29254936332 34130759054 35307681780 36568670415 37073065869 41192295410 43882404498 48758227220 49430754492 51196138581 52961522670 61788443115 68261518108 73137340830 74146131738 82384590820 85326897635 87764808996 102392277162 105923045340 109706011245 119457656689 123576886230 146274681660 148292263476 153588415743 170653795270 185365329345 204784554324 219412022490 238915313378 247153772460 255980692905 307176831486 341307590540 358372970067 370730658690 438824044980 477830626756 511961385810 597288283445 614353662972 716745940134 741461317380 767942078715 1023922771620 1075118910201 1194576566890 1433491880268 1535884157430 1791864850335 2150237820402 2389153133780 3071768314860 3583729700670 4300475640804 5375594551005 7167459401340 10751189102010 21502378204020
• Sum of all divisors σ(n): 78561808612560
• Sum of proper divisors (its aliquot sum) s(n): 57059430408540
• 21502378204020 is an abundant number, because the sum of its proper divisors (57059430408540) is greater than itself. Its abundance is 35557052204520

Bases of 21502378204020

• Binary: 100111000111001101001100111010101101101110100₂
• Hexadecimal: 0x138E699D5B74
• Base-36: 7ME20T2T0

Squares and roots of 21502378204020

• 21502378204020 squared (21502378204020²) is 462352268428714360744160400
• 21502378204020 cubed (21502378204020³) is 9941673339240792043575602092454804808000
• The square root of 21502378204020 is 4637065.6889912613
• The cube root of 21502378204020 is 27807.5140584259

Scales and comparisons

• 21,502,378,204,020 seconds is equal to 683,709 years, 6 weeks, 2 hours, 27 minutes.
• To count from 1 to 21,502,378,204,020 would take you about one million, seven hundred nine thousand, two hundred seventy-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 21502378204020 cubic inches would be around 2317.3 feet tall.

Recreational maths with 21502378204020

• 21502378204020 backwards is 02040287320512
• 21502378204020 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21502378204020's digits is 36
• More coming soon!