128742917940

Names of 128742917940

• Cardinal: 128742917940 can be written as One hundred twenty-eight billion, seven hundred forty-two million, nine hundred seventeen thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.2874291794 × 10¹¹

Factors of 128742917940

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1187

Divisors of 128742917940

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 13 14 15 17 18 20 21 26 27 28 30 34 35 36 39 42 45 47 51 52 54 60 63 65 68 70 78 81 84 85 90 91 94 102 105 108 117 119 126 130 135 140 141 153 156 162 170 180 182 188 189 195 204 210 221 234 235 238 252 255 260 270 273 282 306 315 324 329 340 351 357 364 378 390 405 420 423 442 455 459 468 470 476 510 540 546 564 567 585 595 611 612 630 658 663 702 705 714 756 765 780 799 810 819 846 884 910 918 940 945 987 1020 1053 1071 1092 1093 1105 1134 1170 1190 1222 1260 1269 1316 1326 1365 1377 1404 1410 1428 1530 1547 1598 1620 1638 1645 1692 1755 1785 1820 1833 1836 1890 1974 1989 2106 2115 2142 2186 2210 2268 2295 2340 2380 2397 2444 2457 2538 2652 2730 2754 2820 2835 2961 3055 3060 3094 3196 3213 3276 3279 3290 3315 3510 3570 3666 3780 3807 3948 3978 3995 4095 4212 4230 4277 4284 4372 4420 4590 4641 4794 4914 4935 5076 5265 5355 5460 5465 5499 5508 5593 5670 5922 5967 6110 6188 6345 6426 6558 6580 6630 6885 7020 7140 7191 7332 7371 7614 7651 7735 7956 7990 8190 8460 8554 8883 9165 9180 9282 9588 9639 9828 9837 9870 9945 10387 10530 10710 10930 10998 11186 11340 11844 11934 11985 12220 12285 12690 12831 12852 13116 13260 13770 13923 14209 14382 14742 14805 15228 15302 15470 15980 16065 16380 16395 16497 16779 17108 17766 17901 18330 18564 18581 19035 19278 19674 19740 19890 20774 21060 21385 21420 21573 21860 21996 22372 22953 23205 23868 23970 24570 25380 25662 26649 27495 27540 27846 27965 28418 28764 29484 29511 29610 29835 30604 30940 31161 32130 32790 32994 33558 35532 35802 35955 36660 36855 37162 38070 38255 38493 38556 39348 39780 41548 41769 42627 42770 43146 44415 45906 46410 47940 48195 49140 49185 49491 50337 51324 51371 51935 53298 54990 55692 55743 55930 56836 59022 59220 59670 62322 64155 64260 64719 65580 65988 67116 68859 69615 71045 71604 71910 72709 73710 74324 76140 76510 76986 82485 83538 83895 85254 85540 86292 88533 88830 89505 91812 92820 92905 93483 96390 98370 98982 99463 100674 102742 103870 106596 107865 109980 111486 111860 114765 115479 118044 119340 124644 125307 127881 128310 129438 130067 133245 137718 139230 142090 143820 145418 147420 147555 151011 153020 153972 154113 155805 164970 167076 167229 167790 170508 177066 177660 179010 185810 186966 192465 192780 196740 197964 198926 201348 205484 206577 207740 208845 213135 215730 218127 222972 229530 230958 241553 247455 250614 251685 255762 256620 256855 258876 260134 266490 275436 278460 278715 280449 284180 290836 295110 298389 302022 308226 311610 323595 329940 334458 335580 344295 346437 354132 358020 359597 363545 371620 373932 383643 384930 390201 397852 413154 417690 426270 431460 436254 442665 453033 459060 461916 462339 467415 483106 494910 497315 501228 501687 503370 511524 513710 520268 532980 557430 560898 577395 590220 596778 604044 616452 619731 623220 626535 639405 647190 650335 654381 667823 668916 688590 692874 719194 724659 727090 755055 767286 769860 770565 780402 826308 835380 836145 841347 852540 872508 873307 885330 895167 906066 924678 934830 966212 989820 994630 1003374 1006740 1027420 1032885 1078791 1090635 1114860 1121796 1150929 1154790 1170603 1193556 1207765 1239462 1253070 1278810 1294380 1300670 1308762 1335646 1377180 1385748 1387017 1402245 1438388 1449318 1454180 1491945 1505061 1510110 1534572 1541130 1560804 1672290 1682694 1690871 1732185 1746614 1770660 1790334 1797985 1812132 1849356 1869660 1918215 1951005 1963143 1989260 2003469 2006748 2065770 2157582 2173977 2181270 2265165 2301858 2309580 2311695 2341206 2415530 2478924 2506140 2508435 2557620 2601340 2617524 2619921 2671292 2685501 2774034 2804490 2898636 2983890 3010122 3020220 3082260 3098655 3236373 3271905 3339115 3344580 3365388 3381742 3464370 3493228 3511809 3580668 3595970 3623295 3836430 3902010 3926286 4006938 4131540 4161051 4206735 4315164 4347954 4362540 4366535 4475835 4530330 4603716 4623390 4674761 4682412 4831060 5016870 5072613 5239842 5371002 5393955 5548068 5608980 5754645 5853015 5889429 5967780 6010407 6020244 6113149 6197310 6472746 6521931 6543810 6678230 6763484 6928740 6935085 7023618 7191940 7246590 7525305 7672860 7804020 7852572 7859763 8013876 8056503 8322102 8413470 8454355 8695908 8733070 8951670 9060660 9246780 9349522 9709119 9815715 10017345 10033740 10145226 10479684 10535427 10742004 10787910 10869885 11352991 11509290 11706030 11778858 12020814 12226298 12394620 12945492 13043862 13087620 13099605 13356460 13427505 13870170 14024283 14047236 14493180 15050610 15217839 15719526 16113006 16181865 16644204 16826940 16908710 17466140 17559045 17903340 18031221 18339447 18699044 19418238 19565793 19631430 20034690 20290452 20805255 21070854 21575820 21739770 22705982 23018580 23373805 23412060 23557716 23579289 24041628 24452596 25363065 26087724 26199210 26855010 27740340 28048566 29127357 29447145 30052035 30101220 30435678 30565745 31439052 32226012 32363730 32609655 33817420 34058973 35118090 36062442 36678894 38836476 39131586 39262860 39298815 40069380 40282515 41610510 42072849 42141708 43479540 45411964 45653517 46747610 47158578 48545595 50726130 52398420 52677135 53710020 54093663 55018341 56097132 56764955 58254714 58894290 60104070 60871356 61131490 64727460 65219310 68117946 70121415 70236180 70737867 72124884 73357788 76089195 78263172 78597630 79470937 80565030 83221020 84145698 90156105 91307034 91697235 93495220 94317156 97091190 97828965 101452260 102176919 105354270 108187326 110036682 113529910 116509428 117788580 117896445 120208140 122262980 126218547 130438620 136235892 136960551 140242830 141475734 145636785 152178390 157195260 158941874 161130060 165055023 168291396 170294865 180312210 182614068 183394470 194182380 195657930 204353838 210364245 210708540 216374652 220073364 227059820 228267585 235792890 238412811 252437094 270468315 273921102 275091705 280485660 282951468 291273570 304356780 306530757 317883748 330110046 340589730 353689335 360624420 366788940 378655641 391315860 397354685 408707676 420728490 456535170 471585780 476825622 495165069 504874188 510884595 540936630 547842204 550183410 582547140 613061514 631092735 660220092 681179460 684802755 707378670 715238433 757311282 794709370 825275115 841456980 913070340 919592271 953651244 990330138 1021769190 1081873260 1100366820 1192064055 1226123028 1262185470 1369605510 1414757340 1430476866 1514622564 1532653785 1589418740 1650550230 1839184542 1893278205 1980660276 2043538380 2145715299 2384128110 2475825345 2524370940 2739211020 2860953732 3065307570 3301100460 3576192165 3678369084 3786556410 4291430598 4597961355 4768256220 4951650690 6130615140 6437145897 7152384330 7573112820 8582861196 9195922710 9903301380 10728576495 12874291794 14304768660 18391845420 21457152990 25748583588 32185729485 42914305980 64371458970 128742917940
• Sum of all divisors σ(n): 538001823744
• Sum of proper divisors (its aliquot sum) s(n): 409258905804
• 128742917940 is an abundant number, because the sum of its proper divisors (409258905804) is greater than itself. Its abundance is 280515987864

Bases of 128742917940

• Binary: 1110111111001101011010000011100110100₂
• Hexadecimal: 0x1DF9AD0734
• Base-36: 1N567J90

Squares and roots of 128742917940

• 128742917940 squared (128742917940²) is 16574738919705573843600
• 128742917940 cubed (128742917940³) is 2133880252616578942307205194184000
• The square root of 128742917940 is 358807.6336144481
• The cube root of 128742917940 is 5049.4155836465

Scales and comparisons

• 128,742,917,940 seconds is equal to 4,093 years, 32 weeks, 4 days, 1 hour, 39 minutes.
• To count from 1 to 128,742,917,940 would take you about eight thousand, one hundred eighty-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 128742917940 cubic inches would be around 420.8 feet tall.

Recreational maths with 128742917940

• 128742917940 backwards is 049719247821
• 128742917940 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128742917940's digits is 54
• More coming soon!