640401743842080

Names of 640401743842080

• Cardinal: 640401743842080 can be written as Six hundred forty trillion, four hundred one billion, seven hundred forty-three million, eight hundred forty-two thousand and eighty.

Scientific notation

• Scientific notation: 6.4040174384208 × 10¹⁴

Factors of 640401743842080

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 7044092

Divisors of 640401743842080

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 17 20 22 24 30 32 33 34 40 44 48 51 55 60 66 68 80 85 88 96 102 110 120 132 136 160 165 170 176 187 204 220 240 255 264 272 330 340 352 374 408 440 480 510 528 544 561 660 680 748 816 880 935 1013 1020 1056 1122 1320 1360 1496 1632 1760 1870 2026 2040 2244 2640 2720 2805 2992 3039 3740 4052 4080 4488 5065 5280 5610 5984 6078 7480 8104 8160 8976 10130 11143 11220 12156 14960 15195 16208 17221 17952 20260 22286 22440 24312 29920 30390 32416 33429 34442 40520 44572 44880 48624 51663 55715 60780 66858 68884 81040 86105 89144 89760 97248 103326 111430 121560 133716 137768 162080 167145 172210 178288 189431 206652 222860 243120 258315 267432 275536 334290 344420 356576 378862 413304 445720 486240 516630 534864 551072 568293 668580 688840 757724 826608 891440 947155 1033260 1069728 1136586 1337160 1377680 1515448 1653216 1782880 1894310 2066520 2273172 2674320 2755360 2841465 3030896 3788620 4133040 4546344 5348640 5682930 6061792 7043041 7577240 8266080 9092688 11365860 14086082 15154480 18185376 21129123 22731720 28172164 30308960 35215205 42258246 45463440 56344328 70430410 77473451 84516492 90926880 105645615 112688656 119731697 140860820 154946902 169032984 211291230 225377312 232420353 239463394 281721640 309893804 338065968 359195091 387367255 422582460 464840706 478926788 563443280 598658485 619787608 676131936 718390182 774734510 845164920 929681412 957853576 1126886560 1162101765 1197316970 1239575216 1317048667 1436780364 1549469020 1690329840 1795975455 1859362824 1915707152 2324203530 2394633940 2479150432 2634097334 2873560728 3098938040 3380659680 3591950910 3718725648 3831414304 3951146001 4648407060 4789267880 5268194668 5747121456 6197876080 6585243335 7134600533 7183901820 7437451296 7902292002 9296814120 9578535760 10536389336 11494242912 12395752160 13170486670 14269201066 14367803640 15804584004 18593628240 19157071520 19755730005 21072778672 21403801599 26340973340 28538402132 28735607280 31609168008 35673002665 37187256480 39511460010 42145557344 42807603198 52681946680 57076804264 57471214560 63218336016 71346005330 78480605863 79022920020 85615206396 105363893360 107019007995 114153608528 121288209061 126436672032 142692010660 156961211726 158045840040 171230412792 210727786720 214038015990 228307217056 235441817589 242576418122 285384021320 313922423452 316091680080 342460825584 363864627183 392403029315 428076031980 470883635178 485152836244 570768042640 606441045305 627844846904 632183360160 684921651168 727729254366 784806058630 856152063960 941767270356 970305672488 1141536085280 1177209087945 1212882090610 1255689693808 1334170299671 1455458508732 1569612117260 1712304127920 1819323135915 1883534540712 1940611344976 2354418175890 2425764181220 2511379387616 2668340599342 2910917017464 3139224234520 3424608255840 3638646271830 3767069081424 3881222689952 4002510899013 4708836351780 4851528362440 5336681198684 5821834034928 6278448469040 6670851498355 7277292543660 7534138162848 8005021798026 9417672703560 9703056724880 10673362397368 11643668069856 12556896938080 13341702996710 14554585087320 16010043596052 18835345407120 19406113449760 20012554495065 21346724794736 26683405993420 29109170174640 32020087192104 37670690814240 40025108990130 42693449589472 53366811986840 58218340349280 64040174384208 80050217980260 106733623973680 128080348768416 160100435960520 213467247947360 320200871921040 640401743842080
• Sum of all divisors σ(n): 2332403989284096
• Sum of proper divisors (its aliquot sum) s(n): 1692002245442016
• 640401743842080 is an abundant number, because the sum of its proper divisors (1692002245442016) is greater than itself. Its abundance is 1051600501599936

Bases of 640401743842080

• Binary: 10010001100111000100100110011101001000101100100000₂
• Hexadecimal: 0x2467126748B20
• Base-36: 6B04HZLMAO

Squares and roots of 640401743842080

• 640401743842080 squared (640401743842080²) is 410114393515977049199978726400
• 640401743842080 cubed (640401743842080³) is 262637972782368729147597085539798201126912000
• The square root of 640401743842080 is 25306160.1955349995
• The cube root of 640401743842080 is 86195.4157226913

Scales and comparisons

• 640,401,743,842,080 seconds is equal to 20,362,794 years, 29 weeks, 1 day, 9 hours, 28 minutes.
• To count from 1 to 640,401,743,842,080 would take you about fifty million, nine hundred six thousand, nine hundred eighty-six 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 640401743842080 cubic inches would be around 7183 feet tall.

Recreational maths with 640401743842080

• 640401743842080 backwards is 080248347104046
• 640401743842080 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 640401743842080's digits is 51
• More coming soon!