128638847973888

Names of 128638847973888

• Cardinal: 128638847973888 can be written as One hundred twenty-eight trillion, six hundred thirty-eight billion, eight hundred forty-seven million, nine hundred seventy-three thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 1.28638847973888 × 10¹⁴

Factors of 128638847973888

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 841

Divisors of 128638847973888

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 64 72 84 96 98 112 126 128 144 147 168 192 196 224 252 256 288 294 336 384 392 441 448 504 512 576 588 672 768 784 829 882 896 1008 1152 1176 1344 1536 1568 1658 1764 1792 2016 2304 2352 2487 2688 3136 3316 3528 3584 4032 4608 4704 4974 5376 5803 6272 6632 7056 7461 8064 9408 9948 10752 11606 12544 13264 14112 14922 16128 17409 18816 19896 23212 25088 26528 28224 29844 32256 34818 37632 39792 40621 46424 52227 53056 56448 59688 69636 75264 79584 81242 92848 104454 106112 112896 119376 121863 139272 159168 162484 185696 208908 212224 225792 238752 243726 278544 318336 324968 365589 371392 417816 424448 477504 487452 557088 636672 649936 687241 731178 742784 835632 955008 974904 1114176 1273344 1299872 1374482 1462356 1485568 1671264 1910016 1949808 2061723 2228352 2599744 2748964 2924712 2971136 3342528 3820032 3899616 4123446 4456704 4810687 5199488 5497928 5849424 6185169 6685056 7799232 8246892 8913408 9621374 10398976 10995856 11698848 12370338 13370112 14432061 15598464 16493784 19242748 20797952 21991712 23397696 24740676 26740224 28864122 31196928 32987568 33674809 38485496 43296183 43983424 46795392 49481352 57728244 62393856 65975136 67349618 76970992 86592366 87966848 93590784 98962704 101024427 115456488 131950272 134699236 153941984 173184732 175933696 187181568 197925408 202048854 230912976 263900544 269398472 303073281 307883968 346369464 351867392 395850816 404097708 461825952 527801088 538796944 569722789 606146562 615767936 692738928 791701632 808195416 923651904 1055602176 1077593888 1139445578 1212293124 1231535872 1385477856 1583403264 1616390832 1709168367 1847303808 2155187776 2278891156 2424586248 2463071744 2770955712 3166806528 3232781664 3418336734 3694607616 3988059523 4310375552 4557782312 4849172496 5127505101 5541911424 6465563328 6836673468 7389215232 7976119046 8620751104 9115564624 9698344992 10255010202 11083822848 11964178569 12931126656 13673346936 15952238092 17241502208 18231129248 19396689984 20510020404 22167645696 23928357138 25862253312 27346693872 27916416661 31904476184 35892535707 36462258496 38793379968 41020040808 47856714276 51724506624 54693387744 55832833322 63808952368 71785071414 72924516992 77586759936 82040081616 83749249983 95713428552 109386775488 111665666644 127617904736 143570142828 145849033984 155173519872 164080163232 167498499966 191426857104 218773550976 223331333288 251247749949 255235809472 287140285656 291698067968 328160326464 334996999932 382853714208 437547101952 446662666576 502495499898 510471618944 574280571312 656320652928 669993999864 765707428416 875094203904 893325333152 1004990999796 1020943237888 1148561142624 1312641305856 1339987999728 1531414856832 1786650666304 2009981999592 2041886475776 2297122285248 2625282611712 2679975999456 3062829713664 3573301332608 4019963999184 4594244570496 5359951998912 6125659427328 7146602665216 8039927998368 9188489140992 10719903997824 14293205330432 16079855996736 18376978281984 21439807995648 32159711993472 42879615991296 64319423986944 128638847973888
• Sum of all divisors σ(n): 432395959546980
• Sum of proper divisors (its aliquot sum) s(n): 303757111573092
• 128638847973888 is an abundant number, because the sum of its proper divisors (303757111573092) is greater than itself. Its abundance is 175118263599204

Bases of 128638847973888

• Binary: 11101001111111100010000110101100111101000000000₂
• Hexadecimal: 0x74FF10D67A00
• Base-36: 19LJVCQ680

Squares and roots of 128638847973888

• 128638847973888 squared (128638847973888²) is 16547953208049068802729836544
• 128638847973888 cubed (128638847973888³) is 2128709637009236384087328143671579820163072
• The square root of 128638847973888 is 11341906.7168570911
• The cube root of 128638847973888 is 50480.5464362863

Scales and comparisons

• 128,638,847,973,888 seconds is equal to 4,090,317 years, 23 weeks, 6 days, 6 hours, 4 minutes, 48 seconds.
• To count from 1 to 128,638,847,973,888 would take you about ten million, two hundred twenty-five thousand, seven hundred ninety-three 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 128638847973888 cubic inches would be around 4206.7 feet tall.

Recreational maths with 128638847973888

• 128638847973888 backwards is 888379748836821
• The number of decimal digits it has is: 15
• The sum of 128638847973888's digits is 90
• More coming soon!