128119191720

Names of 128119191720

• Cardinal: 128119191720 can be written as One hundred twenty-eight billion, one hundred nineteen million, one hundred ninety-one thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.2811919172 × 10¹¹

Factors of 128119191720

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 945

Divisors of 128119191720

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 23 24 26 30 39 40 46 52 53 60 65 69 78 89 92 104 106 115 120 130 138 156 159 178 184 195 212 230 260 265 267 276 299 312 318 345 356 390 424 445 460 520 530 534 552 598 636 689 690 712 757 780 795 890 897 920 1060 1068 1157 1196 1219 1272 1335 1378 1380 1495 1514 1560 1590 1780 1794 2047 2067 2120 2136 2271 2314 2392 2438 2670 2756 2760 2990 3028 3180 3445 3471 3560 3588 3657 3785 4094 4134 4485 4542 4628 4717 4876 5340 5512 5785 5980 6056 6095 6141 6360 6890 6942 7176 7314 7570 8188 8268 8970 9084 9256 9434 9752 9841 10235 10335 10680 11355 11570 11960 12190 12282 13780 13884 14151 14628 15140 15847 16376 16536 17355 17411 17940 18168 18285 18868 19682 20470 20670 22710 23140 23585 24380 24564 26611 27560 27768 28302 29256 29523 30280 30705 31694 34710 34822 35880 36570 37736 39364 40121 40940 41340 45420 46280 47170 47541 48760 49128 49205 52233 53222 56604 59046 61321 61410 63388 67373 69420 69644 70755 73140 78728 79235 79833 80242 81880 82680 87055 90840 94340 95082 98410 104466 106444 108491 113208 118092 120363 122642 122820 126776 133055 134746 138840 139288 141510 146280 147615 158470 159666 160484 174110 183963 188680 190164 196820 200605 202119 208932 212888 216982 226343 236184 237705 240726 245284 245640 261165 266110 269492 283020 295230 306605 316940 319332 320968 325473 336865 348220 367926 380328 393640 399165 401210 404238 417864 433964 452686 475410 481452 490568 521573 522330 532220 538984 542455 566040 590460 601815 613210 633880 638664 650946 673730 679029 696440 735852 798330 802420 808476 867928 875849 905372 919815 922783 950820 962904 1010595 1043146 1044660 1064440 1084910 1131715 1180920 1203630 1226420 1301892 1347460 1358058 1410383 1471704 1549579 1564719 1596660 1604840 1616952 1627365 1751698 1810744 1839630 1845566 1901640 2021190 2086292 2089320 2169820 2263430 2407260 2452840 2603784 2607865 2627547 2694920 2716116 2768349 2820766 3099158 3129438 3193320 3254730 3395145 3503396 3570769 3679260 3691132 4042380 4172584 4231149 4339640 4379245 4526860 4613915 4648737 4814520 5215730 5255094 5432232 5536698 5641532 6198316 6258876 6509460 6790290 7006792 7051915 7141538 7358520 7382264 7747895 7823595 8084760 8462298 8758490 9053720 9227830 9297474 10431460 10510188 10712307 11073396 11283064 11996179 12396632 12517752 13018920 13137735 13580580 13841745 14103830 14283076 15495790 15647190 16924596 17516980 17853845 18455660 18594948 20144527 20862920 21020376 21155745 21424614 22146792 23243685 23992358 26275470 27161160 27683490 28207660 28566152 30991580 31294380 33849192 35033960 35707690 35988537 36911320 37189896 40289054 42311490 42849228 46419997 46487370 47984716 52550940 53561535 55366980 56415320 59980895 60433581 61983160 62588760 71415380 71977074 80578108 82127687 84622980 85698456 92839994 92974740 95969432 100722635 105101880 107123070 110733960 119961790 120867162 139259991 142830760 143954148 161156216 164255374 169245960 179942685 185679988 185949480 201445270 214246140 232099985 239923580 241734324 246383061 278519982 287908296 302167905 328510748 359885370 371359976 402890540 410638435 428492280 464199970 479847160 483468648 492766122 557039964 604335810 657021496 696299955 719770740 805781080 821276870 928399940 985532244 1067659931 1114079928 1208671620 1231915305 1392599910 1439541480 1642553740 1856799880 1971064488 2135319862 2417343240 2463830610 2785199820 3202979793 3285107480 4270639724 4927661220 5338299655 5570399640 6405959586 8541279448 9855322440 10676599310 12811919172 16014898965 21353198620 25623838344 32029797930 42706397240 64059595860 128119191720
• Sum of all divisors σ(n): 445602124800
• Sum of proper divisors (its aliquot sum) s(n): 317482933080
• 128119191720 is an abundant number, because the sum of its proper divisors (317482933080) is greater than itself. Its abundance is 189363741360

Bases of 128119191720

• Binary: 1110111010100011111111011100010101000₂
• Hexadecimal: 0x1DD47FB8A8
• Base-36: 1MUUUX0O

Squares and roots of 128119191720

• 128119191720 squared (128119191720²) is 16414527286986116558400
• 128119191720 cubed (128119191720³) is 2103015968474545728323916176448000
• The square root of 128119191720 is 357937.4131325195
• The cube root of 128119191720 is 5041.2480075837

Scales and comparisons

• 128,119,191,720 seconds is equal to 4,073 years, 41 weeks, 2 days, 22 minutes.
• To count from 1 to 128,119,191,720 would take you about eight thousand, one hundred forty-seven 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 128119191720 cubic inches would be around 420.1 feet tall.

Recreational maths with 128119191720

• 128119191720 backwards is 027191911821
• The number of decimal digits it has is: 12
• The sum of 128119191720's digits is 42
• More coming soon!