21204123875991

Names of 21204123875991

• Cardinal: 21204123875991 can be written as Twenty-one trillion, two hundred four billion, one hundred twenty-three million, eight hundred seventy-five thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 2.1204123875991 × 10¹³

Factors of 21204123875991

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 119

Divisors of 21204123875991

• Number of divisors d(n): 512
• Complete list of divisors:
  1 3 7 9 19 21 27 29 49 57 61 63 81 87 133 147 171 183 189 203 243 261 343 399 427 441 513 549 551 567 609 729 783 841 931 1029 1159 1197 1281 1323 1421 1539 1647 1653 1701 1769 1827 2187 2349 2523 2793 2989 3087 3477 3591 3843 3857 3969 4263 4617 4941 4959 5103 5307 5481 5887 6517 7047 7569 8113 8379 8967 9261 9947 10431 10773 11529 11571 11907 12383 12789 13851 14823 14877 15309 15921 15979 16443 17661 19551 20923 21141 22707 24339 24389 25137 26901 26999 27783 29841 31293 32319 33611 34587 34713 35721 37149 38367 41209 41553 44469 44631 47763 47937 49329 51301 52983 56791 58653 62769 63423 68121 73017 73167 75411 80703 80997 83349 86681 89523 93879 96957 100833 103761 104139 107163 111447 111853 115101 123627 133407 133893 143289 143811 147987 153903 158949 170373 170723 175959 188307 188993 204363 219051 219501 226233 235277 242109 242991 250047 260043 268569 281637 288463 290871 302499 311283 312417 334341 335559 345303 359107 370881 397537 401679 429867 431433 443961 461709 463391 476847 511119 512169 527877 564921 566979 606767 613089 657153 658503 678699 705831 726327 728973 750141 780129 782971 805707 844911 865389 907497 933849 937251 974719 1003023 1006677 1035909 1077321 1112643 1192611 1195061 1205037 1289601 1294299 1385127 1390173 1430541 1487729 1533357 1536507 1583631 1646939 1694763 1700937 1820301 1839267 1971459 1975509 2036097 2117493 2178981 2186919 2340387 2348913 2417121 2513749 2534733 2596167 2722491 2811753 2924157 3009069 3020031 3107727 3231963 3243737 3337929 3577833 3585183 3868803 3882897 4155381 4170519 4291623 4463187 4600071 4609521 4750893 4940817 5084289 5102811 5460903 5480797 5914377 5926527 6352479 6536943 6560757 6823033 7021161 7046739 7251363 7541247 7788501 8167473 8365427 8435259 8772471 9027207 9060093 9695889 9731211 10013787 10414103 10733499 10755549 11528573 11648691 12466143 12511557 12874869 13389561 13800213 13828563 14252679 14822451 15252867 15308433 16382709 16442391 17596243 17743131 17779581 19057437 19682271 20469099 21063483 21140217 21754089 22623741 22706159 23365503 24502419 25096281 26317413 27081621 27180279 28266851 29087667 29193633 30041361 31242309 32200497 32266647 34585719 34946073 37398429 37534671 40168683 41400639 41485689 44467353 45758601 45925299 47761231 49148127 49327173 52788729 53338743 57172311 59046813 61407297 63190449 63420651 67871223 68118477 70096509 72898721 73507257 75288843 78952239 81540837 84800553 87263001 87580899 90124083 93726927 96601491 96799941 103757157 112195287 112604013 120506049 124201917 124457067 133402059 137775897 143283693 147444381 147981519 158366187 158943113 171516933 184221891 189571347 190261953 197867957 203613669 204355431 210289527 218696163 225866529 236856717 244622511 254401659 261789003 262742697 281180781 289804473 290399823 311271471 334328617 337812039 361518147 373371201 400206177 413327691 429851079 442333143 443944557 475098561 476829339 510291047 514550799 552665673 570785859 593603871 610841007 613066293 630868581 656088489 677599587 710570151 763204977 785367009 788228091 843542343 869413419 871199469 933814413 1002985851 1013436117 1084554441 1200618531 1289553237 1326999429 1331833671 1385075699 1425295683 1430488017 1530873141 1657997019 1712357577 1780811613 1832523021 1839198879 1968265467 2032798761 2131710453 2289614931 2364684273 2530627029 2613598407 2801443239 3008957553 3253663323 3601855593 3868659711 3995501013 4155227097 4275887049 4291464051 4592619423 4973991057 5342434839 5497569063 5517596637 5904796401 6098396283 6868844793 7094052819 7591881087 8404329717 9026872659 9695529893 11605979133 11986503039 12465681291 12827661147 12874392153 13777858269 14921973171 16027304517 16552789911 17714389203 18295188849 20606534379 22775643261 25212989151 27080617977 29086589679 34817937399 37397043873 38482983441 38623176459 41333574807 48081913551 49658369733 53143167609 61819603137 81241853931 87259769037 104453812197 112191131619 115869529377 124000724421 144245740653 159429502827 243725561793 261779307111 336573394857 347608588131 372002173263 432737221959 731176685379 785337921333 1009720184571 1116006519789 2356013763999 3029160553713 7068041291997 21204123875991
• Sum of all divisors σ(n): 41094988800000
• Sum of proper divisors (its aliquot sum) s(n): 19890864924009
• 21204123875991 is a deficient number, because the sum of its proper divisors (19890864924009) is less than itself. Its deficiency is 1313258951982

Bases of 21204123875991

• Binary: 100110100100011111000010001010111101010010111₂
• Hexadecimal: 0x1348F8457A97
• Base-36: 7IL1FVQFR

Squares and roots of 21204123875991

• 21204123875991 squared (21204123875991²) is 449614869348371589146232081
• 21204123875991 cubed (21204123875991³) is 9533689386150380041311546779866949867271
• The square root of 21204123875991 is 4604793.5758284541
• The cube root of 21204123875991 is 27678.3445266717

Scales and comparisons

• 21,204,123,875,991 seconds is equal to 674,225 years, 28 weeks, 4 days, 9 hours, 59 minutes, 51 seconds.
• To count from 1 to 21,204,123,875,991 would take you about one million, six hundred eighty-five thousand, five hundred sixty-three 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 21204123875991 cubic inches would be around 2306.5 feet tall.

Recreational maths with 21204123875991

• 21204123875991 backwards is 19957832140212
• The number of decimal digits it has is: 14
• The sum of 21204123875991's digits is 54
• More coming soon!