128720285568

Names of 128720285568

• Cardinal: 128720285568 can be written as One hundred twenty-eight billion, seven hundred twenty million, two hundred eighty-five thousand, five hundred sixty-eight.

Scientific notation

• Scientific notation: 1.28720285568 × 10¹¹

Factors of 128720285568

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 48

Divisors of 128720285568

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 17 18 19 21 24 27 28 32 34 36 38 42 48 51 54 56 57 63 64 68 72 76 81 84 96 102 108 112 114 119 126 128 133 136 144 152 153 162 168 171 189 192 204 216 224 228 238 252 266 272 288 289 304 306 323 324 336 342 357 361 378 384 399 408 432 448 456 459 476 504 513 532 544 567 576 578 608 612 646 648 672 684 714 722 756 798 816 864 867 896 912 918 952 969 1008 1026 1064 1071 1083 1088 1134 1152 1156 1197 1216 1224 1292 1296 1344 1368 1377 1428 1444 1512 1539 1596 1632 1728 1734 1824 1836 1904 1938 2016 2023 2052 2128 2142 2166 2176 2261 2268 2312 2394 2432 2448 2527 2584 2592 2601 2688 2736 2754 2856 2888 2907 3024 3078 3192 3213 3249 3264 3456 3468 3591 3648 3672 3808 3876 4032 4046 4104 4256 4284 4332 4522 4536 4624 4788 4896 4913 5054 5168 5184 5202 5472 5491 5508 5712 5776 5814 6048 6069 6137 6156 6384 6426 6498 6528 6783 6936 7182 7296 7344 7581 7616 7752 7803 8064 8092 8208 8512 8568 8664 8721 9044 9072 9248 9576 9639 9747 9792 9826 10108 10336 10368 10404 10773 10944 10982 11016 11424 11552 11628 12096 12138 12274 12312 12768 12852 12996 13566 13872 14364 14688 14739 15162 15232 15504 15606 16184 16416 16473 17024 17136 17328 17442 18088 18144 18207 18411 18496 19152 19278 19494 19584 19652 20216 20349 20672 20808 21546 21888 21964 22032 22743 22848 23104 23256 23409 24192 24276 24548 24624 25536 25704 25992 26163 27132 27744 28728 29241 29376 29478 30324 31008 31212 32368 32832 32946 34272 34391 34656 34884 36176 36288 36414 36822 36992 38304 38437 38556 38988 39304 40432 40698 41344 41616 42959 43092 43928 44064 44217 45486 45696 46208 46512 46818 48552 49096 49248 49419 51072 51408 51984 52326 54264 54621 55233 55488 57456 58482 58752 58956 60648 61047 62016 62424 64736 65664 65892 68229 68544 68782 69312 69768 72352 72576 72828 73644 76608 76874 77112 77976 78608 80864 81396 83232 85918 86184 87856 88128 88434 90972 93024 93347 93636 97104 98192 98496 98838 102816 103173 103968 104329 104652 108528 109242 110466 110976 114912 115311 116964 117912 121296 122094 124032 124848 128877 129472 131784 132651 136458 137088 137564 138624 139536 144704 145656 147288 148257 153216 153748 154224 155952 157216 161728 162792 163863 165699 166464 171836 172368 175712 176256 176868 181944 183141 186048 186694 187272 194208 196384 196992 197676 204687 205632 206346 207936 208658 209304 217056 218484 220932 229824 230622 233928 235824 242592 244188 249696 257754 258944 263568 265302 272916 275128 279072 280041 289408 291312 294576 296514 307496 308448 309519 311904 312987 314432 323456 325584 327726 331398 332928 343672 344736 345933 351424 353736 363888 366282 372096 373388 374544 386631 388416 392768 395352 397953 409374 411264 412692 415872 417316 418608 434112 436968 441864 444771 459648 461244 467856 471648 485184 488376 497097 499392 515508 527136 530604 545832 550256 558144 560082 582624 589152 593028 614992 616896 619038 623808 625974 628864 651168 653429 655452 662796 687344 689472 691866 702848 707472 727776 730303 732564 746776 749088 773262 776832 785536 790704 795906 818748 825384 834632 837216 840123 868224 873936 883728 889542 922488 928557 935712 938961 943296 970368 976752 994194 998784 1031016 1037799 1054272 1061208 1091664 1100512 1116288 1120164 1159893 1165248 1178304 1186056 1229984 1233792 1238076 1247616 1251948 1302336 1306858 1310904 1325592 1374688 1378944 1383732 1414944 1455552 1460606 1465128 1493552 1498176 1546524 1581408 1591812 1637496 1650768 1669264 1674432 1680246 1747872 1767456 1773593 1779084 1844976 1857114 1871424 1877922 1886592 1953504 1960287 1988388 2062032 2075598 2108544 2122416 2183328 2190909 2201024 2240328 2319786 2330496 2356608 2372112 2459968 2476152 2503896 2520369 2604672 2613716 2621808 2651184 2749376 2767464 2785671 2816883 2829888 2911104 2921212 2930256 2987104 2996352 3093048 3113397 3162816 3183624 3274992 3301536 3338528 3348864 3360492 3479679 3495744 3534912 3547186 3558168 3689952 3714228 3742848 3755844 3907008 3920574 3976776 4124064 4151196 4244832 4366656 4381818 4402048 4480656 4639572 4744224 4919936 4952304 5007792 5040738 5227432 5243616 5302368 5320779 5498752 5534928 5571342 5633766 5659776 5842424 5860512 5880861 5974208 6186096 6226794 6325632 6367248 6549984 6572727 6603072 6677056 6720984 6959358 6991488 7069824 7094372 7116336 7379904 7428456 7511688 7561107 7814016 7841148 7953552 8248128 8302392 8450649 8489664 8733312 8763636 8961312 9279144 9488448 9904608 10015584 10081476 10454864 10487232 10604736 10641558 11069856 11142684 11267532 11684848 11721024 11761722 11948416 12372192 12415151 12453588 12734496 13099968 13145454 13206144 13354112 13441968 13918716 14188744 14232672 14759808 14856912 15023376 15122214 15682296 15907104 15962337 16496256 16604784 16901298 16979328 17527272 17642583 17922624 18558288 18976896 19718181 19809216 20031168 20162952 20909728 20974464 21209472 21283116 22139712 22285368 22535064 23369696 23442048 23523444 24744384 24830302 24907176 25468992 26199936 26290908 26883936 27837432 28377488 28465344 29713824 30046752 30244428 31364592 31814208 31924674 33209568 33802596 35054544 35285166 35845248 37116576 37245453 39436362 39618432 40062336 40325904 41819456 42566232 44279424 44570736 45070128 46739392 47046888 47887011 49488768 49660604 49814352 50937984 52581816 52927749 53767872 55674864 56754976 56930688 59154543 59427648 60093504 60488856 62729184 63628416 63849348 66419136 67605192 70109088 70570332 74233152 74490906 78872724 80651808 83638912 85132464 89141472 90140256 93478784 94093776 95774022 99321208 99628704 105163632 105855498 107535744 111349728 111736359 113509952 118309086 118855296 120187008 120977712 125458368 127698696 132838272 135210384 140218176 141140664 143661033 148466304 148981812 157745448 161303616 170264928 178282944 180280512 188187552 191548044 198642416 199257408 210327264 211710996 222699456 223472718 227019904 236618172 241955424 250916736 255397392 270420768 280436352 282281328 287322066 297963624 315490896 322607232 335209077 340529856 356565888 360561024 376375104 383096088 397284832 398514816 420654528 423421992 445398912 446945436 473236344 483910848 510794784 540841536 564562656 574644132 595927248 630981792 670418154 681059712 752750208 766192176 794569664 841309056 846843984 893890872 946472688 967821696 1005627231 1021589568 1081683072 1129125312 1149288264 1191854496 1261963584 1340836308 1532384352 1589139328 1693687968 1787781744 1892945376 2011254462 2043179136 2258250624 2298576528 2383708992 2523927168 2681672616 3064768704 3387375936 3575563488 3785890752 4022508924 4597153056 4767417984 5363345232 6129537408 6774751872 7151126976 7571781504 8045017848 9194306112 10726690464 14302253952 16090035696 18388612224 21453380928 32180071392 42906761856 64360142784 128720285568
• Sum of all divisors σ(n): 490920328800
• Sum of proper divisors (its aliquot sum) s(n): 362200043232
• 128720285568 is an abundant number, because the sum of its proper divisors (362200043232) is greater than itself. Its abundance is 233479757664

Bases of 128720285568

• Binary: 1110111111000010100111010111110000000₂
• Hexadecimal: 0x1DF853AF80
• Base-36: 1N4SQG00

Squares and roots of 128720285568

• 128720285568 squared (128720285568²) is 16568911916707469082624
• 128720285568 cubed (128720285568³) is 2132755073469623650633892266770432
• The square root of 128720285568 is 358776.0939193135
• The cube root of 128720285568 is 5049.1196788283

Scales and comparisons

• 128,720,285,568 seconds is equal to 4,092 years, 47 weeks, 1 day, 2 hours, 52 minutes, 48 seconds.
• To count from 1 to 128,720,285,568 would take you about eight thousand, one hundred eighty-five 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 128720285568 cubic inches would be around 420.8 feet tall.

Recreational maths with 128720285568

• 128720285568 backwards is 865582027821
• 128720285568 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128720285568's digits is 54
• More coming soon!