640884865302096480

Names of 640884865302096480

• Cardinal: 640884865302096480 can be written as Six hundred forty quadrillion, eight hundred eighty-four trillion, eight hundred sixty-five billion, three hundred two million, ninety-six thousand, four hundred eighty.

Scientific notation

• Scientific notation: 6.4088486530209648 × 10¹⁷

Factors of 640884865302096480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1267974171640

Divisors of 640884865302096480

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 32 36 39 40 45 48 52 54 60 65 72 78 80 81 90 96 104 108 117 120 130 135 144 156 160 162 180 195 208 216 234 240 243 260 270 288 312 324 351 360 390 405 416 432 468 480 486 520 540 585 624 648 702 720 780 810 864 936 972 1040 1053 1080 1170 1215 1248 1296 1404 1440 1560 1620 1755 1872 1944 2080 2106 2160 2340 2430 2592 2808 3120 3159 3240 3510 3744 3888 4212 4320 4680 4860 5265 5616 6240 6318 6480 7020 7776 8424 9360 9720 10530 11232 12636 12960 14040 15795 16848 18720 19440 21060 25272 28080 31590 33696 38880 42120 50544 56160 63180 84240 101088 126360 168480 252720 505440 1267974171617 2535948343234 3803922514851 5071896686468 6339870858085 7607845029702 10143793372936 11411767544553 12679741716170 15215690059404 16483664231021 19019612574255 20287586745872 22823535089106 25359483432340 30431380118808 32967328462042 34235302633659 38039225148510 40575173491744 45647070178212 49450992693063 50718966864680 57058837722765 60862760237616 65934656924084 68470605267318 76078450297020 82418321155105 91294140356424 98901985386126 101437933729360 102705907900977 114117675445530 121725520475232 131869313848168 136941210534636 148352978079189 152156900594040 164836642310210 171176513168295 182588280712848 197803970772252 202875867458720 205411815801954 228235350891060 247254963465315 263738627696336 273882421069272 296705956158378 304313801188080 308117723702931 329673284620420 342353026336590 365176561425696 395607941544504 410823631603908 445058934237567 456470701782120 494509926930630 513529539504885 527477255392672 547764842138544 593411912316756 608627602376160 616235447405862 659346569240840 684706052673180 741764890395945 791215883089008 821647263207816 890117868475134 912941403564240 989019853861260 1027059079009770 1095529684277088 1186823824633512 1232470894811724 1318693138481680 1335176802712701 1369412105346360 1483529780791890 1540588618514655 1582431766178016 1643294526415632 1780235736950268 1825882807128480 1978039707722520 2054118158019540 2225294671187835 2373647649267024 2464941789623448 2637386276963360 2670353605425402 2738824210692720 2967059561583780 3081177237029310 3286589052831264 3560471473900536 3956079415445040 4005530408138103 4108236316039080 4450589342375670 4747295298534048 4929883579246896 5340707210850804 5477648421385440 5934119123167560 6162354474058620 6675884013563505 7120942947801072 7912158830890080 8011060816276206 8216472632078160 8901178684751340 9859767158493792 10681414421701608 11868238246335120 12324708948117240 13351768027127010 14241885895602144 16022121632552412 16432945264156320 17802357369502680 20027652040690515 21362828843403216 23736476492670240 24649417896234480 26703536054254020 32044243265104824 35604714739005360 40055304081381030 42725657686806432 49298835792468960 53407072108508040 64088486530209648 71209429478010720 80110608162762060 106814144217016080 128176973060419296 160221216325524120 213628288434032160 320442432651048240 640884865302096480
• Sum of all divisors σ(n): 2442483431097693984
• Sum of proper divisors (its aliquot sum) s(n): 1801598565795597504
• 640884865302096480 is an abundant number, because the sum of its proper divisors (1801598565795597504) is greater than itself. Its abundance is 1160713700493501024

Bases of 640884865302096480

• Binary: 100011100100111000010110001110110010010000010110101001100000₂
• Hexadecimal: 0x8E4E163B2416A60
• Base-36: 4VAEQ2MK0600

Squares and roots of 640884865302096480

• 640884865302096480 squared (640884865302096480²) is 410733410573286348694812683228390400
• 640884865302096480 cubed (640884865302096480³) is 263232826510331311742202540663870251533947775905792000
• The square root of 640884865302096480 is 800552849.7870059297
• The cube root of 640884865302096480 is 862170.8565516519

Scales and comparisons

• 640,884,865,302,096,480 seconds is equal to 20,378,156,329 years, 29 weeks, 10 hours, 48 minutes.
• To count from 1 to 640,884,865,302,096,480 would take you about sixty-one billion, one hundred thirty-four million, four hundred sixty-eight thousand, nine hundred eighty-eight 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 640884865302096480 cubic inches would be around 71847.6 feet tall.

Recreational maths with 640884865302096480

• 640884865302096480 backwards is 084690203568488046
• 640884865302096480 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 640884865302096480's digits is 81
• More coming soon!