128940579040

Names of 128940579040

• Cardinal: 128940579040 can be written as One hundred twenty-eight billion, nine hundred forty million, five hundred seventy-nine thousand and forty.

Scientific notation

• Scientific notation: 1.2894057904 × 10¹¹

Factors of 128940579040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 91421

Divisors of 128940579040

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 56 65 70 80 91 97 104 112 130 140 160 182 194 208 224 260 280 364 388 416 455 485 520 560 679 728 776 910 970 1040 1120 1261 1358 1456 1552 1820 1940 2080 2522 2716 2912 3104 3395 3640 3880 5044 5432 6305 6790 7280 7760 8827 10088 10864 12610 13580 14560 15520 17654 20176 21728 25220 27160 35308 40352 44135 50440 54320 70616 88270 91297 100880 108640 141232 176540 182594 201760 282464 353080 365188 456485 639079 706160 730376 912970 1186861 1278158 1412320 1460752 1825940 2373722 2556316 2921504 3195395 3651880 4747444 5112632 5934305 6390790 7303760 8308027 8855809 9494888 10225264 11868610 12781580 14607520 16616054 17711618 18989776 20450528 23737220 25563160 33232108 35423236 37979552 41540135 44279045 47474440 51126320 61990663 66464216 70846472 83080270 88558090 94948880 102252640 115125517 123981326 132928432 141692944 166160540 177116180 189897760 230251034 247962652 265856864 283385888 309953315 332321080 354232360 460502068 495925304 575627585 619906630 664642160 708464720 805878619 921004136 991850608 1151255170 1239813260 1329284320 1416929440 1611757238 1842008272 1983701216 2302510340 2479626520 3223514476 3684016544 4029393095 4605020680 4959253040 6447028952 8058786190 9210041360 9918506080 12894057904 16117572380 18420082720 25788115808 32235144760 64470289520 128940579040
• Sum of all divisors σ(n): 378788828544
• Sum of proper divisors (its aliquot sum) s(n): 249848249504
• 128940579040 is an abundant number, because the sum of its proper divisors (249848249504) is greater than itself. Its abundance is 120907670464

Bases of 128940579040

• Binary: 1111000000101011101010001100011100000₂
• Hexadecimal: 0x1E057518E0
• Base-36: 1N8FW3J4

Squares and roots of 128940579040

• 128940579040 squared (128940579040²) is 16625672923170487321600
• 128940579040 cubed (128940579040³) is 2143723893643252067886082699264000
• The square root of 128940579040 is 359082.9695766703
• The cube root of 128940579040 is 5051.9984122889

Scales and comparisons

• 128,940,579,040 seconds is equal to 4,099 years, 47 weeks, 2 days, 19 hours, 30 minutes, 40 seconds.
• To count from 1 to 128,940,579,040 would take you about eight thousand, one hundred ninety-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 128940579040 cubic inches would be around 421 feet tall.

Recreational maths with 128940579040

• 128940579040 backwards is 040975049821
• The number of decimal digits it has is: 12
• The sum of 128940579040's digits is 49
• More coming soon!