128538881872740

Names of 128538881872740

• Cardinal: 128538881872740 can be written as One hundred twenty-eight trillion, five hundred thirty-eight billion, eight hundred eighty-one million, eight hundred seventy-two thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.2853888187274 × 10¹⁴

Factors of 128538881872740

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 305

Divisors of 128538881872740

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 67 71 90 108 134 135 142 157 180 201 213 268 270 284 314 335 355 402 426 471 540 603 628 639 670 710 785 804 852 942 1005 1065 1206 1278 1340 1413 1420 1570 1809 1884 1917 2010 2130 2355 2412 2556 2826 3015 3140 3195 3618 3834 4020 4239 4260 4489 4710 4757 5041 5652 6030 6390 7065 7236 7668 8478 8978 9045 9420 9514 9585 10082 10519 11147 12060 12780 13467 14130 14271 15123 16956 17956 18090 19028 19170 20164 21038 21195 22294 22445 23785 25205 26934 28260 28542 30246 31557 33441 36180 38340 40401 42076 42390 42813 44588 44890 45369 47570 50410 52595 53868 55735 57084 60492 63114 66882 67335 71355 75615 80802 84780 85626 89780 90738 94671 95140 100323 100820 105190 111470 121203 126228 128439 133764 134670 136107 142710 151230 157785 161604 167205 171252 181476 189342 200646 202005 210380 214065 222940 226845 242406 256878 269340 272214 284013 285420 300763 300969 302460 315570 318719 334410 337747 378684 401292 404010 428130 453690 473355 484812 501615 513756 544428 568026 601526 601938 606015 631140 637438 642195 668820 675494 680535 704773 746849 791437 808020 856260 902289 907380 946710 956157 1003230 1013241 1136052 1203052 1203876 1212030 1274876 1284390 1350988 1361070 1409546 1420065 1493698 1503815 1504845 1582874 1593595 1688735 1804578 1893420 1912314 2006460 2026482 2114319 2240547 2374311 2424060 2568780 2706867 2722140 2819092 2840130 2868471 2987396 3007630 3009690 3039723 3165748 3187190 3377470 3523865 3609156 3734245 3824628 3957185 4052964 4228638 4481094 4511445 4748622 4780785 5066205 5413734 5680260 5736942 6015260 6019380 6079446 6342957 6374380 6721641 6754940 7047730 7122933 7468490 7914370 8120601 8457276 8605413 8962188 9022890 9119169 9497244 9561570 10132410 10571595 10827468 11202735 11473884 11871555 12158892 12685914 13443282 13534335 14095460 14245866 14342355 14936980 15198615 15828740 16241202 17210826 18045780 18238338 19028871 19123140 20164923 20264820 21143190 21354173 21368799 22405470 22629049 23743110 25371828 26886564 27068670 28491732 28684710 30397230 31714785 32482404 33608205 34421652 35614665 36476676 38057742 40329846 40603005 42286380 42708346 42737598 43027065 44810940 45258098 45595845 47219791 47486220 50038883 53026279 54137340 57369420 60794460 63429570 64062519 67216410 67887147 71229330 76115484 80659692 81206010 85416692 85475196 86054130 90516196 91191690 94439582 95144355 100077766 100824615 106052558 106770865 106843995 113145245 126859140 128125038 134432820 135774294 141659373 142458660 150116649 159078837 162412020 172108260 182383380 188879164 190288710 192187557 200155532 201649230 203661441 212105116 213541730 213687990 226290490 236098955 250194415 256250076 265131395 271548588 283318746 300233298 318157674 320312595 339435735 380577420 384375114 403298460 407322882 424978119 427083460 427375980 450349947 452580980 472197910 477236511 500388830 530262790 566637492 576562671 600466596 610984323 636315348 640625190 678871470 708296865 750583245 768750228 795394185 814645764 849956238 900699894 944395820 954473022 960937785 1000777660 1018307205 1060525580 1153125342 1221968646 1274934357 1281250380 1351049841 1357742940 1416593730 1431709533 1501166490 1516146283 1590788370 1699912476 1801399788 1908946044 1921875570 2036614410 2124890595 2251749735 2306250684 2386182555 2443937292 2549868714 2702099682 2833187460 2863419066 2882813355 3002332980 3032292566 3054921615 3181576740 3352605161 3552760693 3843751140 4073228820 4249781190 4503499470 4548438849 4772365110 5099737428 5404199364 5726838132 5765626710 6064585132 6109843230 6374671785 6705210322 6755249205 7105521386 7158547665 7580731415 8499562380 9006998940 9096877698 9544730220 10057815483 10658282079 11531253420 12219686460 12749343570 13410420644 13510498410 13645316547 14211042772 14317095330 15161462830 16763025805 17763803465 18193755396 20115630966 21316564158 22742194245 25498687140 27020996820 27290633094 28634190660 30173446449 30322925660 31974846237 33526051610 35527606930 40231261932 40935949641 42633128316 45484388490 50289077415 53291410395 54581266188 60346892898 63949692474 67052103220 68226582735 71055213860 81871899282 90520339347 90968776980 95924538711 100578154830 106582820790 120693785796 127899384948 136453165470 150867232245 159874231185 163743798564 181040678694 191849077422 201156309660 204679748205 213165641580 238034966431 272906330940 301734464490 319748462370 362081357388 383698154844 409359496410 452601696735 476069932862 479622693555 603468928980 639496924740 714104899293 818718992820 905203393470 952139865724 959245387110 1190174832155 1428209798586 1810406786940 1918490774220 2142314697879 2380349664310 2856419597172 3570524496465 4284629395758 4760699328620 6426944093637 7141048992930 8569258791516 10711573489395 12853888187274 14282097985860 21423146978790 25707776374548 32134720468185 42846293957580 64269440936370 128538881872740
• Sum of all divisors σ(n): 414378691910400
• Sum of proper divisors (its aliquot sum) s(n): 285839810037660
• 128538881872740 is an abundant number, because the sum of its proper divisors (285839810037660) is greater than itself. Its abundance is 157300928164920

Bases of 128538881872740

• Binary: 11101001110011111001010011001001101001101100100₂
• Hexadecimal: 0x74E7CA64D364
• Base-36: 19K9Y3HOX0

Squares and roots of 128538881872740

• 128538881872740 squared (128538881872740²) is 16522244153094207769555107600
• 128538881872740 cubed (128538881872740³) is 2123750789467145516451558287540120206824000
• The square root of 128538881872740 is 11337498.9249278431
• The cube root of 128538881872740 is 50467.4667918981

Scales and comparisons

• 128,538,881,872,740 seconds is equal to 4,087,138 years, 44 weeks, 4 hours, 39 minutes.
• To count from 1 to 128,538,881,872,740 would take you about ten million, two hundred seventeen thousand, eight 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 128538881872740 cubic inches would be around 4205.6 feet tall.

Recreational maths with 128538881872740

• 128538881872740 backwards is 047278188835821
• The number of decimal digits it has is: 15
• The sum of 128538881872740's digits is 72
• More coming soon!