19971421927821

Names of 19971421927821

• Cardinal: 19971421927821 can be written as Nineteen trillion, nine hundred seventy-one billion, four hundred twenty-one million, nine hundred twenty-seven thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 1.9971421927821 × 10¹³

Factors of 19971421927821

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 877

Divisors of 19971421927821

• Number of divisors d(n): 480
• Complete list of divisors:
  1 3 7 9 13 21 27 29 39 53 63 81 87 89 91 117 159 189 203 261 267 273 351 371 377 477 567 609 623 683 689 783 801 819 841 1053 1113 1131 1157 1431 1537 1827 1869 2049 2067 2349 2403 2457 2523 2581 2639 3339 3393 3471 4293 4611 4717 4781 4823 5481 5607 5887 6147 6201 7209 7371 7569 7743 7917 8099 8879 10017 10179 10413 10759 10933 13833 14151 14343 14469 16443 16821 17661 18067 18441 18603 19807 19981 22707 23229 23751 24297 26637 30051 30537 31239 32277 32799 33019 33553 36199 41499 42453 43029 43407 44573 50463 52983 54201 55323 55809 59421 59943 60787 61321 62153 68121 69687 71253 72891 74849 76531 79911 93717 96831 98397 99057 100659 108597 124497 127359 129087 130221 133719 136793 138649 139867 158949 162603 178263 179829 182361 183963 186459 209061 213759 218673 224547 229593 234871 239733 253393 257491 290493 295191 297171 301977 312011 325791 382077 387261 390663 401157 410379 415947 419601 425509 429247 470587 476847 487809 523943 534789 539487 547083 551889 559377 574403 579449 656019 673641 688779 704613 719199 760179 772473 790231 871479 885573 891513 905931 936033 957551 973037 977373 1049771 1203471 1231137 1247841 1258803 1276527 1287741 1411761 1463427 1571829 1604367 1618461 1641249 1655667 1678131 1723209 1738347 1762823 1778309 1802437 2020923 2066337 2113839 2280537 2317419 2370693 2674539 2717793 2808099 2872653 2919111 2932119 3149313 3221711 3294109 3610413 3693411 3743523 3776409 3829581 3863223 3966997 4020821 4056143 4235283 4715487 4923747 4967001 5034393 5169627 5215041 5288469 5334927 5407311 5531617 6062769 6199011 6341517 6811259 6841611 6952257 7112079 7348397 7467239 8424297 8617959 8757333 9447939 9665133 9882327 11080233 11230569 11329227 11488743 11589669 11900991 12062463 12168429 12339761 12448163 12705849 13647023 14146461 15508881 15645123 15865407 16004781 16221933 16594851 19024551 20433777 20524833 20856771 21336237 22045191 22401717 22551977 22916699 25272891 25853877 26271999 27768979 28343817 28995399 29646981 30443359 34466229 34769007 35702973 36187389 36505287 37019283 37344489 38117547 40941069 41882243 42439383 46526643 46935369 47596221 48014343 48665799 49784553 51121867 51570961 52270673 61301331 64008711 66135573 67205151 67655931 68750097 77561631 78815997 83306937 85031451 86986197 88940943 91330077 93429619 95529161 107108919 108562167 109515861 111057849 112033467 122823207 125646729 142788663 144043029 145997397 149353659 153365601 154712883 156812019 160416893 183903993 198406719 201615453 202967793 206250291 213103513 249920811 260958591 266822829 273990231 280288857 286587483 293175701 321326757 325686501 328547583 333173547 336100401 357853069 360996727 368469621 376940187 395763667 448060977 460096803 464138649 470436057 481250679 551711979 595220157 604846359 608903379 618750873 639310539 654007333 664584271 749762433 821970693 840866571 859762449 879527103 999520641 1008301203 1073559207 1082990181 1105408863 1130820561 1187291001 1214585047 1380290409 1392415947 1411308171 1443752037 1826710137 1856252619 1917931617 1962021999 1993752813 2249287299 2465912079 2522599713 2579287347 2638581309 2709458951 2770345669 3220677621 3248970543 3392461683 3561873003 3643755141 4140871227 4177247841 4233924513 4331256111 4652089897 5753794851 5886065997 5981258439 7567799139 7737862041 7915743927 8128376853 8311037007 8502095329 9662032863 9746911629 10685619009 10931265423 12993768333 13956269691 17261384553 17658197991 17943775317 18966212657 23747231781 24385130559 24933111021 25506285987 28986098589 29240734887 32056857027 32793796269 35222966363 41868809073 52974593973 53831325951 56898637971 73155391677 74799333063 76518857961 98381388807 105668899089 125606427219 170695913913 219466175031 224397999189 229556573883 246560764541 317006697267 376819281657 512087741739 688669721649 739682293623 951020091801 1536263225217 2219046880869 2853060275403 6657140642607 19971421927821
• Sum of all divisors σ(n): 39238637518080
• Sum of proper divisors (its aliquot sum) s(n): 19267215590259
• 19971421927821 is a deficient number, because the sum of its proper divisors (19267215590259) is less than itself. Its deficiency is 704206337562

Bases of 19971421927821

• Binary: 100100010100111110101100000100111100110001101₂
• Hexadecimal: 0x1229F582798D
• Base-36: 72UQSYVT9

Squares and roots of 19971421927821

• 19971421927821 squared (19971421927821²) is 398857693819049468133808041
• 19971421927821 cubed (19971421927821³) is 7965755292417879084810661293374171408661
• The square root of 19971421927821 is 4468939.6871988549
• The cube root of 19971421927821 is 27131.2411992893

Scales and comparisons

• 19,971,421,927,821 seconds is equal to 635,029 years, 22 weeks, 6 days, 18 hours, 10 minutes, 21 seconds.
• To count from 1 to 19,971,421,927,821 would take you about one million, five hundred eighty-seven thousand, five hundred seventy-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 19971421927821 cubic inches would be around 2260.9 feet tall.

Recreational maths with 19971421927821

• 19971421927821 backwards is 12872912417991
• 19971421927821 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 19971421927821's digits is 63
• More coming soon!