20198987172

Names of 20198987172

• Cardinal: 20198987172 can be written as Twenty billion, one hundred ninety-eight million, nine hundred eighty-seven thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 2.0198987172 × 10¹⁰

Factors of 20198987172

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 162

Divisors of 20198987172

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 17 18 19 21 26 27 28 34 36 38 39 42 49 51 52 54 57 63 68 76 78 81 84 91 98 101 102 108 114 117 119 126 133 147 153 156 162 171 182 189 196 202 204 221 228 234 238 243 247 252 266 273 294 303 306 323 324 342 351 357 364 378 399 404 441 442 459 468 476 486 494 513 532 546 567 588 606 612 637 646 663 684 702 707 714 741 756 798 819 833 882 884 909 918 931 969 972 988 1026 1053 1071 1092 1134 1197 1212 1274 1292 1313 1323 1326 1377 1404 1414 1428 1482 1539 1547 1596 1638 1666 1701 1717 1729 1764 1818 1836 1862 1911 1919 1938 1989 2052 2106 2121 2142 2223 2261 2268 2394 2457 2499 2548 2626 2646 2652 2727 2754 2793 2828 2907 2964 3078 3094 3159 3213 3276 3332 3402 3434 3458 3591 3636 3724 3822 3838 3876 3939 3969 3978 4131 4199 4212 4242 4284 4446 4522 4617 4641 4788 4914 4949 4998 5151 5187 5252 5292 5454 5508 5586 5733 5757 5814 5967 6156 6188 6318 6363 6426 6669 6783 6804 6868 6916 7182 7371 7497 7644 7676 7878 7938 7956 8181 8262 8379 8398 8484 8721 8892 9044 9191 9234 9282 9639 9828 9898 9996 10302 10374 10773 10829 10908 11172 11466 11514 11628 11817 11907 11934 12019 12103 12597 12636 12726 12852 13338 13433 13566 13923 14364 14742 14847 14994 15453 15561 15756 15827 15876 16362 16524 16758 16796 17199 17271 17442 17901 18382 18468 18564 19089 19278 19796 20007 20349 20604 20748 21546 21658 22113 22321 22491 22932 23028 23634 23814 23868 24038 24206 24543 24947 25137 25194 25452 26163 26676 26866 27132 27573 27846 28917 29393 29484 29694 29988 30906 31122 31654 32319 32487 32623 32724 33516 34398 34542 34884 35451 35802 36057 36309 36764 37791 38178 38556 40014 40299 40698 41769 43092 43316 44226 44541 44642 44982 46359 46683 47268 47481 47628 48076 48412 49086 49894 50274 50388 51597 51813 52326 53703 53732 55146 55692 57267 57834 58786 59388 60021 61047 61812 62244 63308 64337 64638 64974 65246 66963 67473 68796 69084 70902 71604 72114 72618 74841 75411 75582 76356 78489 80028 80598 81396 82719 83538 84133 88179 88452 89082 89284 89964 92718 93366 94031 94962 97461 97869 98172 99788 100548 103194 103626 104652 106353 107406 108171 108927 110292 113373 114534 115668 117572 120042 120897 122094 125307 128674 129276 129948 130492 133623 133926 134946 139077 140049 141804 142443 144228 145236 149682 150822 151164 154791 155439 156247 156978 161196 165438 167076 168266 171801 174629 176358 178164 183141 185436 186732 188062 189924 193011 194922 195738 200889 202419 205751 206388 207252 212706 214812 216342 217854 224523 226233 226746 228361 229068 240084 241794 244188 248157 250614 252399 257348 264537 267246 267852 269892 278154 280098 282093 284886 292383 293607 299364 301644 309582 310878 312494 313956 319059 324513 326781 330876 336532 340119 343602 349258 352716 362691 366282 375921 376124 386022 389844 391476 400869 401778 404838 411502 417231 420147 424099 425412 427329 432684 435708 449046 452466 453492 456722 466317 468741 483588 496314 501228 504798 523887 529074 534492 549423 556308 560196 564186 569772 579033 584766 587214 602667 617253 619164 621756 624988 638118 649026 653562 673569 680238 685083 687204 698516 725382 732564 744471 751842 757197 772044 793611 801738 803556 809676 823004 834462 840294 846279 848198 854658 877149 880821 898092 904932 913444 932634 937482 973539 980343 992628 1009596 1020357 1047774 1058148 1088073 1093729 1098846 1128372 1158066 1169532 1174428 1202607 1205334 1222403 1234506 1272297 1276236 1281987 1298052 1307124 1347138 1360476 1370166 1406223 1450764 1488942 1503684 1514394 1571661 1587222 1598527 1603476 1668924 1680588 1692558 1696396 1709316 1737099 1754298 1761642 1808001 1851759 1865268 1874964 1947078 1960686 2020707 2040714 2055249 2095548 2176146 2187458 2197692 2233413 2271591 2316132 2380833 2405214 2410668 2444806 2469012 2538837 2544594 2563974 2631447 2642463 2694276 2740332 2812446 2920617 2941029 2968693 2977884 3028788 3143322 3174444 3197054 3264219 3281187 3385116 3474198 3508596 3523284 3616002 3667209 3703518 3816891 3845961 3894156 3921372 4041414 4081428 4110498 4218669 4352292 4374916 4466826 4543182 4714983 4761666 4795581 4810428 4889612 5077674 5089188 5127948 5211297 5262894 5284926 5424003 5555277 5624892 5841234 5882058 5937386 6062121 6165747 6286644 6394108 6528438 6562374 6814773 6948396 7142499 7232004 7334418 7407036 7616511 7633782 7691922 7927389 8082828 8220996 8437338 8906079 8933652 9086364 9429966 9523332 9591162 9843561 10155348 10422594 10525788 10569852 10848006 11001627 11110554 11450673 11682468 11764116 11874772 12124242 12331494 12656007 13056876 13124748 13629546 14144949 14284998 14386743 14668836 15233022 15267564 15383844 15633891 15854778 16665831 16874676 17812158 18497241 18859932 19182324 19687122 20444319 20780851 20845188 21696012 22003254 22221108 22849533 22901346 24248484 24662988 25312014 26718237 27259092 28289898 28569996 28773486 29530683 30466044 31267782 31709556 33004881 33331662 34352019 35624316 36994482 37968021 39374244 40888638 41561702 42434847 43160229 44006508 45699066 45802692 49997493 50624028 53436474 55491723 56579796 57546972 59061366 62342553 62535564 66009762 66663324 68704038 73988964 75936042 80154711 81777276 83123404 84869694 86320458 88592049 91398132 99014643 99994986 103056057 106872948 110983446 118122732 124685106 129480687 132019524 137408076 151872084 160309422 169739388 172640916 177184098 187027659 198029286 199989972 206112114 221966892 240464133 249370212 258961374 265776147 297043929 320618844 354368196 374055318 388442061 396058572 412224228 480928266 517922748 531552294 561082977 594087858 721392399 748110636 776884122 961856532 1063104588 1122165954 1188175716 1442784798 1553768244 1683248931 2244331908 2885569596 3366497862 5049746793 6732995724 10099493586 20198987172
• Sum of all divisors σ(n): 74662922880
• Sum of proper divisors (its aliquot sum) s(n): 54463935708
• 20198987172 is an abundant number, because the sum of its proper divisors (54463935708) is greater than itself. Its abundance is 34264948536

Bases of 20198987172

• Binary: 10010110011111101000001010110100100₂
• Hexadecimal: 0x4B3F415A4
• Base-36: 9A1YE90

Squares and roots of 20198987172

• 20198987172 squared (20198987172²) is 407999082774620557584
• 20198987172 cubed (20198987172³) is 8241168239152326809806703312448
• The square root of 20198987172 is 142123.1408743839
• The cube root of 20198987172 is 2723.3901631199

Scales and comparisons

• 20,198,987,172 seconds is equal to 642 years, 13 weeks, 5 days, 13 hours, 46 minutes, 12 seconds.
• To count from 1 to 20,198,987,172 would take you about one thousand, two hundred eighty-four 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 20198987172 cubic inches would be around 226.9 feet tall.

Recreational maths with 20198987172

• 20198987172 backwards is 27178989102
• 20198987172 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20198987172's digits is 54
• More coming soon!