128747645040

Names of 128747645040

• Cardinal: 128747645040 can be written as One hundred twenty-eight billion, seven hundred forty-seven million, six hundred forty-five thousand and forty.

Scientific notation

• Scientific notation: 1.2874764504 × 10¹¹

Factors of 128747645040

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 282

Divisors of 128747645040

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 31 35 40 42 43 48 49 56 60 62 70 80 84 86 93 98 105 112 120 124 129 140 147 155 168 172 186 191 196 210 215 217 240 245 248 258 280 294 301 310 336 344 372 382 392 420 430 434 465 490 496 516 560 573 588 602 620 645 651 688 735 744 764 784 840 860 868 903 930 955 980 1032 1085 1146 1176 1204 1240 1290 1302 1333 1337 1470 1488 1505 1519 1528 1680 1720 1736 1806 1849 1860 1910 1960 2064 2107 2170 2292 2352 2408 2480 2580 2604 2666 2674 2865 2940 3010 3038 3056 3255 3440 3472 3612 3698 3720 3820 3920 3999 4011 4214 4340 4515 4557 4584 4816 5160 5208 5332 5348 5547 5730 5880 5921 6020 6076 6321 6510 6665 6685 7224 7396 7440 7595 7640 7998 8022 8213 8428 8680 9030 9114 9168 9245 9331 9359 10320 10416 10535 10664 10696 11094 11460 11760 11842 12040 12152 12642 12943 13020 13330 13370 14448 14792 15190 15280 15996 16044 16426 16856 17360 17763 18060 18228 18490 18662 18718 19995 20055 21070 21328 21392 22188 22785 22920 23684 24080 24304 24639 25284 25886 26040 26660 26740 27735 27993 28077 29584 29605 30380 31605 31992 32088 32852 33712 35526 36120 36456 36980 37324 37436 38829 39990 40110 41065 41447 42140 44376 45570 45840 46655 46795 47368 49278 50568 51772 52080 53320 53480 55470 55986 56154 57319 57491 59210 60760 63210 63984 64176 64715 65317 65704 71052 72240 72912 73960 74648 74872 77658 79980 80220 82130 82894 84280 88752 88815 90601 91140 93310 93590 94736 98556 101136 103544 106640 106960 110940 111972 112308 114638 114982 118420 121520 123195 124341 126420 129430 130634 131408 139965 140385 142104 147920 149296 149744 155316 159960 160440 164260 165788 168560 171957 172473 177630 181202 182280 186620 187180 194145 195951 197112 207088 207235 221880 223944 224616 229276 229964 236840 246390 248682 252840 254603 258860 261268 271803 279930 280770 284208 286595 287455 290129 310632 319920 320880 326585 328520 331576 343914 344946 353159 355260 362404 364560 373240 374360 388290 391902 394224 401233 402437 414470 443760 447888 449232 453005 458552 459928 473680 492780 497364 505680 509206 517720 522536 543606 559860 561540 573190 574910 580258 621264 621705 653170 657040 663152 687828 689892 706318 710520 724808 746480 748720 763809 776580 783804 802466 804874 828940 859785 862365 870387 906010 917104 919856 979755 985560 994728 1018412 1035440 1045072 1059477 1087212 1119720 1123080 1146380 1149820 1160516 1203699 1207311 1243410 1273015 1306340 1359015 1375656 1379784 1412636 1421040 1449616 1450645 1527618 1553160 1567608 1604932 1609748 1657880 1719570 1724730 1740774 1765795 1782221 1812020 1959510 1971120 1989456 2006165 2012185 2036824 2118954 2174424 2239440 2246160 2292760 2299640 2321032 2407398 2414622 2472113 2486820 2546030 2612680 2718030 2751312 2759568 2808631 2825272 2901290 3055236 3106320 3135216 3209864 3219496 3315760 3439140 3449460 3481548 3531590 3564442 3624040 3819045 3919020 4012330 4024370 4073648 4237908 4348848 4351935 4585520 4599280 4642064 4814796 4829244 4944226 4973640 5092060 5225360 5297385 5346663 5436060 5617262 5650544 5802580 6018495 6036555 6110472 6419728 6438992 6878280 6898920 6963096 7063180 7128884 7248080 7416339 7638090 7838040 8024660 8048740 8425893 8475816 8703870 8911105 9629592 9658488 9888452 9947280 10184120 10594770 10693326 10872120 10947929 11234524 11605160 12036990 12073110 12220944 12360565 12475547 13756560 13797840 13926192 14043155 14126360 14257768 14832678 15276180 15676080 16049320 16097480 16851786 16951632 17304791 17407740 17822210 19259184 19316976 19776904 20368240 21189540 21386652 21744240 21895858 22469048 23210320 24073980 24146220 24721130 24951094 26733315 28086310 28252720 28515536 29665356 30552360 32098640 32194960 32843787 33703572 34609582 34815480 35644420 37081695 37426641 39553808 42129465 42379080 42773304 43791716 44938096 48147960 48292440 49442260 49902188 51914373 53466630 54739645 56172620 59330712 61104720 62377735 65687574 67407144 69219164 69630960 71288840 74163390 74853282 76635503 84258930 84758160 85546608 86523955 87583432 96295920 96584880 98884520 99804376 103828746 106933260 109479290 112345240 118661424 124755470 131375148 134814288 138438328 142577680 148326780 149706564 153271006 164218935 168517860 173047910 175166864 187133205 197769040 199608752 207657492 213866520 218958580 224690480 229906509 249510940 259571865 262750296 276876656 296653560 299413128 306542012 328437870 337035720 346095820 374266410 383177515 415314984 427733040 437917160 459813018 499021880 519143730 525500592 536448521 593307120 598826256 613084024 656875740 674071440 692191640 748532820 766355030 830629968 875834320 919626036 998043760 1038287460 1072897042 1149532545 1226168048 1313751480 1384383280 1497065640 1532710060 1609345563 1839252072 2076574920 2145794084 2299065090 2627502960 2682242605 2994131280 3065420120 3218691126 3678504144 4153149840 4291588168 4598130180 5364485210 6130840240 6437382252 8046727815 8583176336 9196260360 10728970420 12874764504 16093455630 18392520720 21457940840 25749529008 32186911260 42915881680 64373822520 128747645040
• Sum of all divisors σ(n): 493230145536
• Sum of proper divisors (its aliquot sum) s(n): 364482500496
• 128747645040 is an abundant number, because the sum of its proper divisors (364482500496) is greater than itself. Its abundance is 235734855456

Bases of 128747645040

• Binary: 1110111111001111101010010100001110000₂
• Hexadecimal: 0x1DF9F52870
• Base-36: 1N590UPC

Squares and roots of 128747645040

• 128747645040 squared (128747645040²) is 16575956103345836601600
• 128747645040 cubed (128747645040³) is 2134115312592191327144636696064000
• The square root of 128747645040 is 358814.2207884185
• The cube root of 128747645040 is 5049.4773832925

Scales and comparisons

• 128,747,645,040 seconds is equal to 4,093 years, 40 weeks, 2 days, 18 hours, 44 minutes.
• To count from 1 to 128,747,645,040 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 128747645040 cubic inches would be around 420.8 feet tall.

Recreational maths with 128747645040

• 128747645040 backwards is 040546747821
• 128747645040 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128747645040's digits is 48
• More coming soon!