129720199518

Names of 129720199518

• Cardinal: 129720199518 can be written as One hundred twenty-nine billion, seven hundred twenty million, one hundred ninety-nine thousand, five hundred eighteen.

Scientific notation

• Scientific notation: 1.29720199518 × 10¹¹

Factors of 129720199518

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 575

Divisors of 129720199518

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 19 21 26 27 38 39 42 43 54 57 63 78 79 86 91 114 117 126 129 133 158 171 182 189 234 237 247 258 266 273 301 342 351 378 387 399 409 474 494 513 546 553 559 602 702 711 741 774 798 817 818 819 903 1026 1027 1106 1118 1161 1197 1227 1422 1482 1501 1634 1638 1659 1677 1729 1806 2054 2133 2223 2322 2394 2451 2454 2457 2709 2863 3002 3081 3318 3354 3397 3458 3591 3681 3913 4266 4446 4503 4902 4914 4977 5031 5187 5317 5418 5719 5726 6162 6669 6794 7182 7189 7353 7362 7771 7826 8127 8589 9006 9243 9954 10062 10191 10374 10507 10621 10634 11043 11438 11739 13338 13509 14378 14706 14931 15093 15542 15561 15951 16254 17157 17178 17587 18486 19513 20382 21014 21242 21567 22059 22086 23313 23478 23779 25767 27018 27729 29862 30186 30573 31122 31521 31863 31902 32311 34314 35174 35217 37219 39026 40527 43134 44118 44161 46626 46683 47558 47853 51471 51534 52761 54397 55458 58539 61146 63042 63726 64543 64622 64701 69939 70434 71337 74347 74438 77301 81054 88322 91719 93366 94563 95589 95706 96933 101023 102942 105522 105651 108794 111657 117078 123109 129086 129402 132483 136591 139878 142674 143559 148694 154413 154602 158283 163191 175617 183438 189126 191178 193629 193866 194103 202046 209817 211302 214011 223041 223314 226177 228631 246218 264966 273182 283689 286767 287118 290799 303069 308826 309127 316566 326382 334153 334971 351234 369327 387258 388206 397449 409773 419634 420043 428022 446082 451801 452354 457262 474849 489573 526851 567378 573534 580887 581598 606138 613909 618254 642033 668306 669123 669942 678531 685893 707161 738654 794898 819546 839059 840086 872397 903602 909207 927381 949698 979146 1002459 1004913 1053702 1107981 1161774 1192347 1227818 1229319 1260129 1284066 1338246 1355403 1357062 1371786 1389373 1414322 1468719 1600417 1678118 1742661 1744794 1818414 1841727 1854762 2004918 2007369 2009826 2035593 2057679 2121483 2215962 2339071 2384694 2458638 2517177 2520258 2710806 2727621 2778746 2782143 2937438 2940301 3007377 3200834 3323943 3485322 3683454 3687957 3780387 4014738 4066209 4071186 4115358 4168119 4242966 4297363 4343989 4678142 4801251 5034354 5455242 5525181 5564286 5873413 5880602 6014754 6106779 6173037 6364449 6647886 7017213 7375914 7551531 7560774 7980817 8132418 8336238 8346429 8594726 8687978 8820903 9022131 9602502 9725611 11050362 11341161 11746826 12198627 12213558 12346074 12504357 12728898 12892089 13031967 14034426 14403753 15103062 15961634 16575543 16692858 17620239 17641806 18044262 18061849 19093347 19451222 21051639 22654593 22682322 23942451 24397254 25008714 25784178 26063934 26398087 26462709 28807506 29176833 30407923 33151086 35240478 36123698 37513071 38186694 38676267 39095901 42103278 43211259 45309186 47884902 52796174 52860717 52925418 54185547 55865719 58353666 60815846 63154917 71827353 75026142 77352534 78191802 79194261 79388127 86422518 87530499 91223769 105721434 108371094 111731438 116028801 117287703 126309834 126432943 143654706 158388522 158582151 158776254 162556641 167597157 175060998 182447538 184786609 215482059 232057602 234575406 237582783 252865886 262591497 273671307 317164302 325113282 335194314 343175131 369573218 379298829 430964118 475165566 487669923 502791471 525182994 547342614 554359827 686350262 712748349 758597658 821013921 975339846 1005582942 1029525393 1108719654 1137896487 1425496698 1508374413 1642027842 1663079481 2059050786 2275792974 2402225917 3016748826 3088576179 3326158962 3413689461 4804451834 4989238443 6177152358 6827378922 7206677751 9265728537 9978476886 14413355502 18531457074 21620033253 43240066506 64860099759 129720199518
• Sum of all divisors σ(n): 387932160000
• Sum of proper divisors (its aliquot sum) s(n): 258211960482
• 129720199518 is an abundant number, because the sum of its proper divisors (258211960482) is greater than itself. Its abundance is 128491760964

Bases of 129720199518

• Binary: 1111000110011111011010010100101011110₂
• Hexadecimal: 0x1E33ED295E
• Base-36: 1NLC22JI

Squares and roots of 129720199518

• 129720199518 squared (129720199518²) is 16827330162989727432324
• 129720199518 cubed (129720199518³) is 2182844626098286901905507122419832
• The square root of 129720199518 is 360166.9050842957
• The cube root of 129720199518 is 5062.1600176401

Scales and comparisons

• 129,720,199,518 seconds is equal to 4,124 years, 36 weeks, 3 days, 4 hours, 45 minutes, 18 seconds.
• To count from 1 to 129,720,199,518 would take you about eight thousand, two hundred forty-nine 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 129720199518 cubic inches would be around 421.8 feet tall.

Recreational maths with 129720199518

• 129720199518 backwards is 815991027921
• 129720199518 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129720199518's digits is 54
• More coming soon!