21071284290

Names of 21071284290

• Cardinal: 21071284290 can be written as Twenty-one billion, seventy-one million, two hundred eighty-four thousand, two hundred ninety.

Scientific notation

• Scientific notation: 2.107128429 × 10¹⁰

Factors of 21071284290

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 217

Divisors of 21071284290

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 29 30 35 37 42 45 49 58 61 63 70 73 74 87 90 98 105 111 122 126 145 146 147 174 183 185 203 210 219 222 245 259 261 290 294 305 315 333 365 366 370 406 427 435 438 441 490 511 518 522 549 555 609 610 630 657 666 730 735 777 854 870 882 915 1015 1022 1073 1095 1098 1110 1218 1281 1295 1305 1314 1421 1470 1533 1554 1665 1769 1813 1827 1830 2030 2117 2135 2146 2190 2205 2257 2331 2555 2562 2590 2610 2701 2745 2842 2989 3045 3066 3219 3285 3330 3538 3577 3626 3654 3843 3885 4234 4263 4270 4410 4453 4514 4599 4662 5110 5307 5365 5402 5439 5490 5978 6090 6351 6405 6438 6570 6771 7105 7154 7511 7665 7686 7770 8103 8526 8845 8906 8967 9065 9135 9198 9657 10585 10614 10730 10731 10878 11285 11655 12383 12702 12789 12810 13359 13505 13542 14210 14819 14945 15022 15330 15799 15921 16095 16206 16317 17690 17885 17934 18130 18270 18907 19053 19215 19314 20313 21170 21315 21462 22265 22533 22570 22995 23310 24309 24766 25578 26535 26718 26901 27010 27195 29638 29890 31171 31598 31755 31842 32190 32193 32634 33855 35770 37149 37555 37814 38106 38430 40077 40515 40626 42630 44457 44530 44835 45066 45990 47397 48285 48618 52577 53070 53655 53802 54390 56721 61915 62342 63510 63945 64386 65453 66795 67599 67710 74095 74298 75110 78329 78995 79605 80154 81030 81585 86681 88914 89670 93513 94535 94794 95265 96570 101565 103733 105154 107310 110593 111447 112665 113442 121545 123830 127890 129137 130906 132349 133371 133590 134505 135198 142191 148190 155855 156658 157731 157990 159210 160965 163170 164761 170163 173362 185745 187026 189070 190530 196359 200385 203130 207466 218197 221186 222285 222894 225330 234987 236985 243090 258274 260043 262885 264698 266742 269010 280539 283605 284382 311199 311710 315462 321930 327265 329522 331779 337995 340326 371490 387411 391645 392718 397047 400770 433405 436394 444570 458171 467565 469974 473193 473970 494283 518665 520086 525770 548303 552965 557235 561078 567210 589077 622398 645685 654530 654591 661745 663558 666855 675990 704961 710955 774822 780129 783290 788655 794094 823805 850815 866810 903959 916342 933597 935130 946386 981795 988566 995337 1037330 1090985 1096606 1105930 1114470 1153327 1162233 1174935 1178154 1191141 1291370 1300215 1309182 1323490 1333710 1374513 1402695 1409922 1421910 1482849 1555995 1560258 1577310 1644909 1647610 1658895 1701630 1807918 1867194 1937055 1963590 1963773 1985235 1990674 2181970 2290855 2306654 2324466 2349870 2365965 2382282 2471415 2600430 2711877 2741515 2749026 2805390 2945385 2965698 3111990 3207197 3272955 3289818 3317790 3459981 3524805 3838121 3874110 3900645 3927546 3970470 4123539 4519795 4581710 4667985 4731930 4778069 4934727 4942830 4976685 5423754 5483030 5766635 5811165 5890770 5955705 6327713 6414394 6545910 6872565 6919962 7049610 7414245 7676242 7801290 8073289 8135631 8224545 8247078 9039590 9335970 9556138 9621591 9818865 9869454 9953370 10379943 11514363 11533270 11622330 11911410 12655426 13559385 13745130 14334207 14828490 16035985 16146578 16271262 16449090 17299905 18983139 19190605 19243182 19637730 20617695 20759886 23028726 23890345 24219867 24673635 27118770 28668414 28864773 31638565 32071970 33446483 34543089 34599810 37966278 38381210 40366445 40678155 41235390 43002621 47780690 48107955 48439734 49347270 51899715 56949417 57571815 57729546 63277130 66892966 69086178 71671035 72659601 80732890 81356310 86005242 94915695 96215910 100339449 103799430 113898834 115143630 121099335 143342070 144323865 145319202 167232415 172715445 189831390 200678898 215013105 234125381 242198670 284747085 288647730 301018347 334464830 345430890 363298005 430026210 468250762 501697245 569494170 602036694 702376143 726596010 1003394490 1170626905 1404752286 1505091735 2107128429 2341253810 3010183470 3511880715 4214256858 7023761430 10535642145 21071284290
• Sum of all divisors σ(n): 69762008160
• Sum of proper divisors (its aliquot sum) s(n): 48690723870
• 21071284290 is an abundant number, because the sum of its proper divisors (48690723870) is greater than itself. Its abundance is 27619439580

Bases of 21071284290

• Binary: 10011100111111100100100100001000010₂
• Hexadecimal: 0x4E7F24842
• Base-36: 9OHAR0I

Squares and roots of 21071284290

• 21071284290 squared (21071284290²) is 443999021630000804100
• 21071284290 cubed (21071284290³) is 9355629609247606136119697589000
• The square root of 21071284290 is 145159.5132604129
• The cube root of 21071284290 is 2762.0423643279

Scales and comparisons

• 21,071,284,290 seconds is equal to 670 years, 14 hours, 31 minutes, 30 seconds.
• To count from 1 to 21,071,284,290 would take you about one thousand, three hundred forty 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 21071284290 cubic inches would be around 230.2 feet tall.

Recreational maths with 21071284290

• 21071284290 backwards is 09248217012
• The number of decimal digits it has is: 11
• The sum of 21071284290's digits is 36
• More coming soon!