128838205440

Names of 128838205440

• Cardinal: 128838205440 can be written as One hundred twenty-eight billion, eight hundred thirty-eight million, two hundred five thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.2883820544 × 10¹¹

Factors of 128838205440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 22
• Sum of prime factors: 96

Divisors of 128838205440

• Number of divisors d(n): 612
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 64 70 72 79 80 84 90 96 105 112 120 126 128 140 144 158 160 168 180 192 210 224 237 240 252 256 280 288 315 316 320 336 360 384 395 420 448 474 480 504 512 553 560 576 630 632 640 672 711 720 768 790 840 896 948 960 1008 1024 1106 1120 1152 1185 1260 1264 1280 1344 1422 1440 1536 1580 1659 1680 1792 1896 1920 2016 2048 2212 2240 2304 2370 2520 2528 2560 2688 2765 2844 2880 3072 3160 3318 3360 3555 3584 3792 3840 4032 4096 4424 4480 4608 4740 4977 5040 5056 5120 5376 5530 5688 5760 6144 6241 6320 6636 6720 7110 7168 7584 7680 8064 8192 8295 8848 8960 9216 9480 9954 10080 10112 10240 10752 11060 11376 11520 12288 12482 12640 13272 13440 14220 14336 15168 15360 16128 16384 16590 17696 17920 18432 18723 18960 19908 20160 20224 20480 21504 22120 22752 23040 24576 24885 24964 25280 26544 26880 28440 28672 30336 30720 31205 32256 32768 33180 35392 35840 36864 37446 37920 39816 40320 40448 40960 43008 43687 44240 45504 46080 49152 49770 49928 50560 53088 53760 56169 56880 57344 60672 61440 62410 64512 65536 66360 70784 71680 73728 74892 75840 79632 80640 80896 81920 86016 87374 88480 91008 92160 93615 98304 99540 99856 101120 106176 107520 112338 113760 114688 121344 122880 124820 129024 131061 132720 141568 143360 147456 149784 151680 159264 161280 161792 163840 172032 174748 176960 182016 184320 187230 196608 199080 199712 202240 212352 215040 218435 224676 227520 229376 242688 245760 249640 258048 262122 265440 280845 283136 286720 294912 299568 303360 318528 322560 323584 327680 344064 349496 353920 364032 368640 374460 393183 398160 399424 404480 424704 430080 436870 449352 455040 458752 485376 491520 499280 516096 524244 530880 561690 566272 573440 589824 599136 606720 637056 645120 647168 655305 688128 698992 707840 728064 737280 748920 786366 796320 798848 808960 849408 860160 873740 898704 910080 970752 983040 998560 1032192 1048488 1061760 1123380 1132544 1146880 1198272 1213440 1274112 1290240 1294336 1310610 1376256 1397984 1415680 1456128 1474560 1497840 1572732 1592640 1597696 1617920 1698816 1720320 1747480 1797408 1820160 1941504 1965915 1997120 2064384 2096976 2123520 2246760 2265088 2293760 2396544 2426880 2548224 2580480 2588672 2621220 2795968 2831360 2912256 2949120 2995680 3145464 3185280 3195392 3235840 3397632 3440640 3494960 3594816 3640320 3883008 3931830 3994240 4128768 4193952 4247040 4493520 4530176 4793088 4853760 5096448 5160960 5177344 5242440 5591936 5662720 5824512 5991360 6290928 6370560 6390784 6471680 6795264 6881280 6989920 7189632 7280640 7766016 7863660 7988480 8387904 8494080 8987040 9060352 9586176 9707520 10192896 10321920 10484880 11183872 11325440 11649024 11982720 12581856 12741120 12781568 12943360 13590528 13979840 14379264 14561280 15532032 15727320 15976960 16775808 16988160 17974080 18120704 19172352 19415040 20385792 20643840 20969760 22367744 22650880 23298048 23965440 25163712 25482240 25563136 25886720 27181056 27959680 28758528 29122560 31454640 31953920 33551616 33976320 35948160 36241408 38344704 38830080 40771584 41939520 44735488 45301760 46596096 47930880 50327424 50964480 51126272 54362112 55919360 57517056 58245120 62909280 63907840 67103232 67952640 71896320 76689408 77660160 81543168 83879040 89470976 90603520 95861760 100654848 101928960 102252544 108724224 111838720 115034112 116490240 125818560 127815680 134206464 135905280 143792640 153378816 163086336 167758080 178941952 181207040 191723520 201309696 203857920 204505088 223677440 230068224 232980480 251637120 255631360 268412928 271810560 287585280 306757632 326172672 335516160 357883904 383447040 402619392 407715840 409010176 447354880 460136448 503274240 511262720 536825856 543621120 575170560 613515264 671032320 715767808 766894080 805238784 815431680 894709760 920272896 1006548480 1022525440 1073651712 1150341120 1227030528 1342064640 1431535616 1533788160 1610477568 1630863360 1789419520 1840545792 2013096960 2045050880 2147303424 2300682240 2684129280 2863071232 3067576320 3220955136 3578839040 3681091584 4026193920 4294606848 4601364480 5368258560 6135152640 6441910272 7157678080 8052387840 8589213696 9202728960 10736517120 12883820544 14315356160 16104775680 18405457920 21473034240 25767641088 32209551360 42946068480 64419102720 128838205440
• Sum of all divisors σ(n): 516983869584
• Sum of proper divisors (its aliquot sum) s(n): 388145664144
• 128838205440 is an abundant number, because the sum of its proper divisors (388145664144) is greater than itself. Its abundance is 259307458704

Bases of 128838205440

• Binary: 1110111111111010110110000000000000000₂
• Hexadecimal: 0x1DFF5B0000
• Base-36: 1N6QXVK0

Squares and roots of 128838205440

• 128838205440 squared (128838205440²) is 16599283180999645593600
• 128838205440 cubed (128838205440³) is 2138621856630369043555427549184000
• The square root of 128838205440 is 358940.3926002201
• The cube root of 128838205440 is 5050.6610308759

Scales and comparisons

• 128,838,205,440 seconds is equal to 4,096 years, 34 weeks, 22 hours, 24 minutes.
• To count from 1 to 128,838,205,440 would take you about eight thousand, one 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 128838205440 cubic inches would be around 420.9 feet tall.

Recreational maths with 128838205440

• 128838205440 backwards is 044502838821
• 128838205440 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128838205440's digits is 45
• More coming soon!