128163386988

Names of 128163386988

• Cardinal: 128163386988 can be written as One hundred twenty-eight billion, one hundred sixty-three million, three hundred eighty-six thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 1.28163386988 × 10¹¹

Factors of 128163386988

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 120

Divisors of 128163386988

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 17 18 21 26 28 34 36 37 39 41 42 51 52 63 68 74 78 82 84 91 102 111 117 119 123 126 148 153 156 164 182 204 221 222 234 238 246 252 259 273 287 306 333 357 364 369 442 444 468 476 481 492 518 533 546 574 612 629 663 666 697 714 738 777 819 861 884 962 1036 1066 1071 1092 1148 1258 1326 1332 1369 1394 1428 1443 1476 1517 1547 1554 1599 1638 1681 1722 1887 1924 1989 2091 2132 2142 2331 2516 2583 2652 2738 2788 2886 3034 3094 3108 3198 3276 3362 3367 3444 3731 3774 3978 4107 4182 4284 4329 4403 4551 4641 4662 4797 4879 5043 5166 5476 5661 5772 6068 6188 6273 6396 6724 6734 7462 7548 7956 8177 8214 8364 8658 8806 9061 9102 9282 9324 9583 9594 9758 10086 10101 10332 10619 11193 11322 11767 12321 12546 13209 13468 13653 13923 14637 14924 15129 16354 16428 17316 17612 17797 18122 18204 18564 19166 19188 19516 19721 20172 20202 21238 21853 22386 22644 23273 23534 24531 24642 25092 25789 26418 27183 27306 27846 28577 28749 29274 30258 30303 31857 32708 33579 35301 35594 36244 38332 39442 39627 40404 42476 43706 43911 44772 46546 47068 49062 49284 51578 52836 53391 54366 54612 55692 56129 57154 57239 57498 58548 59163 60516 60606 62197 63427 63714 65559 67158 69819 70602 71188 73593 77367 78884 79254 81549 85731 86247 87412 87822 93092 95571 98124 103156 105903 106782 108732 112258 114308 114478 114996 118326 121212 124394 124579 126854 127428 131118 134316 138047 139638 141204 147186 152971 154734 158508 160173 162911 163098 168387 171462 171717 172494 175644 177489 180523 186591 190281 191142 196677 200039 209457 211806 213564 224516 228956 232101 236652 248788 249158 253708 257193 262236 276094 279276 294372 302549 305942 309468 320346 325822 326196 335257 336774 342924 343434 344988 354978 361046 371501 373182 373737 380562 382284 392903 393354 400078 414141 418914 423612 435379 458913 464202 488733 498316 505161 514386 515151 541569 552188 559773 570843 600117 605098 611884 640692 651644 670514 673548 686868 709956 722092 729677 743002 746364 747474 761124 785806 786708 800156 808561 828282 837828 870758 907647 917826 928404 954193 977466 1005771 1010322 1028772 1030302 1057349 1083138 1114503 1119546 1121211 1141686 1178709 1200234 1210196 1242423 1306137 1341028 1376739 1459354 1466199 1486004 1494948 1571612 1617122 1624707 1656564 1741516 1800351 1815294 1835652 1908386 1954932 2011542 2020644 2060604 2114698 2117843 2166276 2189031 2229006 2239092 2242422 2283372 2301289 2346799 2357418 2400468 2425683 2484846 2600507 2612274 2722941 2753478 2862579 2918708 2932398 3017313 3172047 3234244 3249414 3343509 3536127 3600702 3630588 3816772 3918411 4023084 4229396 4235686 4378062 4458012 4484844 4602578 4693598 4714836 4851366 4969692 5107739 5201014 5224548 5445882 5506956 5659927 5725158 5864796 6034626 6344094 6353529 6498828 6567093 6679351 6687018 6903867 7040397 7072254 7201404 7277049 7401443 7801521 7836822 8471372 8587737 8756124 9205156 9387196 9516141 9702732 10215478 10402028 10891764 11319854 11450316 12069252 12404509 12688188 12707058 13134186 13358702 13374036 13745537 13807734 14080794 14144508 14554098 14802886 15323217 15603042 15673644 16109023 16979781 17175474 19032282 19060587 20038053 20430956 20711601 21121191 22204329 22639708 23404563 24809018 25414116 26268372 26717404 27491074 27615468 28161588 29108196 29605772 29916757 30646434 31206084 32218046 33959562 34350948 37213527 38064564 38121174 39121913 40076106 41236611 41423202 42242382 44408658 45969651 46809126 48327069 49618036 50939343 54982148 59833514 60114159 61292868 64436092 66612987 67919124 74427054 76242348 78243826 80152212 82473222 82846404 84484764 86831563 88817316 89750271 91939302 93618252 96218759 96654138 101878686 111640581 117365739 119667028 120228318 123709833 133225974 144981207 148854108 156487652 164946444 173663126 179500542 183878604 192437518 193308276 203757372 209417299 223281162 234731478 240456636 247419666 260494689 266451948 269250813 273853391 288656277 289962414 347326252 352097217 359001084 384875036 418834598 446562324 469462956 494839332 508584869 520989378 538501626 547706782 577312554 579924828 628251897 704194434 781484067 821560173 837669196 865968831 1017169738 1041978756 1077003252 1095413564 1154625108 1256503794 1408388868 1525754607 1562968134 1643120346 1731937662 1884755691 2034339476 2464680519 2513007588 3051509214 3125936268 3286240692 3463875324 3560094083 3769511382 4577263821 4929361038 6103018428 7120188166 7539022764 9154527642 9858722076 10680282249 14240376332 18309055284 21360564498 32040846747 42721128996 64081693494 128163386988
• Sum of all divisors σ(n): 444745226016
• Sum of proper divisors (its aliquot sum) s(n): 316581839028
• 128163386988 is an abundant number, because the sum of its proper divisors (316581839028) is greater than itself. Its abundance is 188418452040

Bases of 128163386988

• Binary: 1110111010111001000100001011001101100₂
• Hexadecimal: 0x1DD722166C
• Base-36: 1MVL66B0

Squares and roots of 128163386988

• 128163386988 squared (128163386988²) is 16425853764235847712144
• 128163386988 cubed (128163386988³) is 2105193052594055464433745899182272
• The square root of 128163386988 is 357999.1438369651
• The cube root of 128163386988 is 5041.8276076943

Scales and comparisons

• 128,163,386,988 seconds is equal to 4,075 years, 10 weeks, 2 days, 12 hours, 49 minutes, 48 seconds.
• To count from 1 to 128,163,386,988 would take you about eight thousand, one hundred fifty 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 128163386988 cubic inches would be around 420.2 feet tall.

Recreational maths with 128163386988

• 128163386988 backwards is 889683361821
• 128163386988 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128163386988's digits is 63
• More coming soon!