128786505120400

Names of 128786505120400

• Cardinal: 128786505120400 can be written as One hundred twenty-eight trillion, seven hundred eighty-six billion, five hundred five million, one hundred twenty thousand, four hundred.

Scientific notation

• Scientific notation: 1.287865051204 × 10¹⁴

Factors of 128786505120400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 486803

Divisors of 128786505120400

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 25 38 40 43 50 76 80 86 95 100 152 172 190 200 215 304 344 380 400 430 475 688 760 811 817 860 950 1075 1520 1622 1634 1720 1900 2150 3244 3268 3440 3800 4055 4085 4300 6488 6536 7600 8110 8170 8600 12976 13072 15409 16220 16340 17200 20275 20425 30818 32440 32680 34873 40550 40850 61636 64880 65360 69746 77045 81100 81700 123272 139492 154090 162200 163400 174365 246544 278984 308180 324400 326800 348730 385225 485923 557968 616360 662587 697460 770450 871825 971846 1232720 1325174 1394920 1540900 1743650 1943692 2429615 2650348 2789840 3081800 3312935 3487300 3887384 4859230 5300696 6163600 6625870 6974600 7774768 9232537 9718460 10601392 12148075 13251740 13949200 16564675 18465074 19436920 20894689 24296150 26503480 33129350 36930148 38873840 41789378 46162685 48592300 53006960 66258700 73860296 83578756 92325370 97184600 104473445 132517400 147720592 167157512 184650740 194369200 208946890 230813425 265034800 334315024 369301480 394083553 396999091 417893780 461626850 522367225 738602960 788167106 793998182 835787560 923253700 1044734450 1576334212 1587996364 1671575120 1846507400 1970417765 1984995455 2089468900 3152668424 3175992728 3693014800 3940835530 3969990910 4178937800 6305336848 6351985456 7487587507 7881671060 7939981820 8357875600 9852088825 9924977275 14975175014 15763342120 15879963640 16945592779 19704177650 19849954550 29950350028 31526684240 31759927280 33891185558 37437937535 39408355300 39699909100 59900700056 67782371116 74875875070 78816710600 79399818200 84727963895 119801400112 135564742232 149751750140 157633421200 158799636400 169455927790 187189687675 271129484464 299503500280 321966262801 338911855580 374379375350 423639819475 599007000560 643932525602 677823711160 748758750700 847279638950 1287865051204 1355647422320 1497517501400 1609831314005 1694559277900 2575730102408 2995035002800 3219662628010 3389118555800 5151460204816 6439325256020 6778237111600 8049156570025 12878650512040 16098313140050 25757301024080 32196626280100 64393252560200 128786505120400
• Sum of all divisors σ(n): 333680201155840
• Sum of proper divisors (its aliquot sum) s(n): 204893696035440
• 128786505120400 is an abundant number, because the sum of its proper divisors (204893696035440) is greater than itself. Its abundance is 76107190915040

Bases of 128786505120400

• Binary: 11101010010000101110001111000111011101010010000₂
• Hexadecimal: 0x752171E3BA90
• Base-36: 19NFPBZ9N4

Squares and roots of 128786505120400

• 128786505120400 squared (128786505120400²) is 16585963901126815418496160000
• 128786505120400 cubed (128786505120400³) is 2136048324879238173223901378707737664000000
• The square root of 128786505120400 is 11348414.2117037657
• The cube root of 128786505120400 is 50499.8536244361

Scales and comparisons

• 128,786,505,120,400 seconds is equal to 4,095,012 years, 26 weeks, 6 minutes, 40 seconds.
• To count from 1 to 128,786,505,120,400 would take you about ten million, two hundred thirty-seven thousand, five hundred thirty-one 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 128786505120400 cubic inches would be around 4208.3 feet tall.

Recreational maths with 128786505120400

• 128786505120400 backwards is 004021505687821
• The number of decimal digits it has is: 15
• The sum of 128786505120400's digits is 49
• More coming soon!