128421652450

Names of 128421652450

• Cardinal: 128421652450 can be written as One hundred twenty-eight billion, four hundred twenty-one million, six hundred fifty-two thousand, four hundred fifty.

Scientific notation

• Scientific notation: 1.2842165245 × 10¹¹

Factors of 128421652450

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1168

Divisors of 128421652450

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 5 7 10 13 14 17 25 26 31 34 35 49 50 62 65 70 85 91 98 119 130 155 170 175 182 217 221 238 245 310 325 343 350 403 425 434 442 455 490 527 595 637 650 686 775 806 833 850 910 1054 1085 1093 1105 1190 1225 1274 1519 1547 1550 1666 1715 2015 2170 2186 2210 2275 2450 2635 2821 2975 3038 3094 3185 3430 3689 4030 4165 4459 4550 5270 5425 5465 5525 5642 5831 5950 6370 6851 7378 7595 7651 7735 8330 8575 8918 10075 10633 10829 10850 10930 11050 11662 13175 13702 14105 14209 15190 15302 15470 15925 17150 18445 18581 19747 20150 20825 21266 21658 22295 25823 26350 27325 28210 28418 29155 31850 33883 34255 36890 37162 37975 38255 38675 39494 41650 44590 47957 51646 53165 53557 54145 54650 58310 67766 68510 70525 71045 75803 75950 76510 77350 92225 92905 95914 98735 99463 106330 107114 108290 111475 129115 130067 138229 141050 142090 145775 151606 169415 171275 180761 184450 185810 191275 197470 198926 222950 237181 239785 241553 258230 260134 265825 267785 270725 276458 291550 335699 338830 342550 355225 361522 374899 379015 382550 440479 464525 474362 479570 483106 493675 497315 531650 535570 541450 576011 645575 650335 671398 691145 696241 710450 749798 758030 847075 880958 903805 910469 929050 987350 994630 1152022 1185905 1198925 1207765 1291150 1300670 1338925 1382290 1392482 1660267 1678495 1690871 1694150 1807610 1820938 1874495 1895075 2202395 2349893 2371810 2397850 2415530 2486575 2677850 2880055 3083353 3251675 3320534 3356990 3381742 3455725 3481205 3748990 3790150 4032077 4404790 4519025 4552345 4699786 4873687 4973150 5760110 5929525 6038825 6166706 6373283 6503350 6911450 6962410 7488143 8064154 8301335 8392475 8454355 9038050 9104690 9372475 9747374 11011975 11621869 11749465 11836097 11859050 12077650 12746566 14400275 14976286 15416765 16602670 16784950 16908710 17406025 18744950 20160385 21583471 22023950 22761725 23243738 23498930 23672194 24368435 28224539 28800550 30833530 31866415 34812050 37440715 40320770 41506675 42271775 43166942 45523450 48736870 52417001 56449078 58109345 58747325 59180485 63732830 74881430 77083825 82852679 83013350 84543550 100801925 104834002 107917355 116218690 117494650 118360970 121842175 141122695 151084297 154167650 159332075 165705358 187203575 197571773 201603850 215834710 243684350 262085005 282245390 290546725 295902425 302168594 318664150 366919007 374407150 395143546 414263395 524170010 539586775 581093450 591804850 705613475 733838014 755421485 828526790 987858865 1079173550 1310425025 1411226950 1510842970 1834595035 1975717730 2071316975 2568433049 2620850050 3669190070 3777107425 4142633950 4939294325 5136866098 7554214850 9172975175 9878588650 12842165245 18345950350 25684330490 64210826225 128421652450
• Sum of all divisors σ(n): 328178995200
• Sum of proper divisors (its aliquot sum) s(n): 199757342750
• 128421652450 is an abundant number, because the sum of its proper divisors (199757342750) is greater than itself. Its abundance is 71335690300

Bases of 128421652450

• Binary: 1110111100110100001101110011111100010₂
• Hexadecimal: 0x1DE686E7E2
• Base-36: 1MZUXP7M

Squares and roots of 128421652450

• 128421652450 squared (128421652450²) is 16492120817988591002500
• 128421652450 cubed (128421652450³) is 2117945407851140541788252081125000
• The square root of 128421652450 is 358359.6691174943
• The cube root of 128421652450 is 5045.2119758633

Scales and comparisons

• 128,421,652,450 seconds is equal to 4,083 years, 21 weeks, 2 days, 17 hours, 14 minutes, 10 seconds.
• To count from 1 to 128,421,652,450 would take you about eight thousand, one hundred sixty-six 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 128421652450 cubic inches would be around 420.4 feet tall.

Recreational maths with 128421652450

• 128421652450 backwards is 054256124821
• The number of decimal digits it has is: 12
• The sum of 128421652450's digits is 40
• More coming soon!