640055737728

Names of 640055737728

• Cardinal: 640055737728 can be written as Six hundred forty billion, fifty-five million, seven hundred thirty-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 6.40055737728 × 10¹¹

Factors of 640055737728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 142

Divisors of 640055737728

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 23 24 27 32 33 36 44 46 48 54 64 66 69 72 81 88 92 96 99 103 108 128 132 138 144 162 176 184 192 198 206 207 216 253 264 276 288 297 309 324 352 368 384 396 412 414 432 506 528 529 552 576 594 618 621 648 704 736 759 792 824 828 864 891 927 1012 1056 1058 1104 1133 1152 1188 1236 1242 1296 1408 1472 1518 1584 1587 1648 1656 1728 1782 1854 1863 2024 2112 2116 2208 2266 2277 2369 2376 2472 2484 2592 2781 2944 3036 3168 3174 3296 3312 3399 3456 3564 3708 3726 4048 4224 4232 4416 4532 4554 4738 4752 4761 4944 4968 5184 5562 5819 6072 6336 6348 6592 6624 6798 6831 7107 7128 7416 7452 8096 8343 8464 8832 9064 9108 9476 9504 9522 9888 9936 10197 10368 10609 11124 11638 12144 12672 12696 13184 13248 13596 13662 14214 14256 14283 14832 14904 16192 16686 16928 17457 18128 18216 18952 19008 19044 19776 19872 20394 20493 21218 21321 22248 23276 24288 25392 26059 26496 27192 27324 28428 28512 28566 29664 29808 30591 31827 32384 33372 33856 34914 36256 36432 37904 38016 38088 39552 39744 40788 40986 42436 42642 42849 44496 46552 48576 50784 52118 52371 54384 54487 54648 56856 57024 57132 59328 59616 61182 63654 63963 66744 67712 69828 72512 72864 75808 76176 78177 79488 81576 81972 84872 85284 85698 88992 91773 93104 95481 97152 101568 104236 104742 108768 108974 109296 113712 114048 114264 116699 118656 119232 122364 127308 127926 133488 139656 145024 145728 151616 152352 156354 157113 163152 163461 163944 169744 170568 171396 177984 183546 186208 190962 191889 203136 208472 209484 217536 217948 218592 227424 228528 233398 234531 238464 244007 244728 254616 255852 266976 279312 286443 291456 303232 304704 312708 314226 326304 326922 327888 339488 341136 342792 350097 355968 367092 372416 381924 383778 416944 418968 435072 435896 437184 454848 457056 466796 469062 471339 488014 489456 490383 509232 511704 533952 558624 572886 599357 609408 625416 628452 652608 653844 655776 678976 682272 685584 700194 703593 732021 734184 744832 763848 767556 833888 837936 859329 871792 874368 909696 914112 933592 938124 942678 976028 978912 980766 1018464 1023408 1050291 1067904 1117248 1145772 1198714 1250832 1256904 1305216 1307688 1311552 1357952 1364544 1371168 1400388 1407186 1464042 1468368 1471149 1527696 1535112 1667776 1675872 1718658 1743584 1798071 1828224 1867184 1876248 1885356 1952056 1957824 1961532 2036928 2046816 2100582 2110779 2196063 2234496 2291544 2397428 2501664 2513808 2615376 2623104 2684077 2729088 2742336 2800776 2814372 2928084 2936736 2942298 3055392 3070224 3150873 3335552 3351744 3437316 3487168 3596142 3734368 3752496 3770712 3904112 3915648 3923064 4073856 4093632 4201164 4221558 4392126 4413447 4583088 4794856 5003328 5027616 5230752 5368154 5394213 5484672 5601552 5612161 5628744 5856168 5873472 5884596 6110784 6140448 6301746 6588189 6703488 6874632 6974336 7192284 7468736 7504992 7541424 7808224 7846128 8052231 8187264 8402328 8443116 8784252 8826894 9166176 9452619 9589712 10006656 10055232 10461504 10736308 10788426 11203104 11224322 11257488 11712336 11746944 11769192 12221568 12280896 12603492 13176378 13749264 14384568 14937472 15009984 15082848 15616448 15692256 16104462 16182639 16804656 16836483 16886232 17568504 17653788 18332352 18905238 19179424 19764567 20110464 20923008 21472616 21576852 22406208 22448644 22514976 23424672 23538384 24156693 24561792 25206984 26352756 27498528 28769136 30019968 30165696 31232896 31384512 32208924 32365278 33609312 33672966 33772464 35137008 35307576 36664704 37810476 38358848 39529134 42945232 43153704 44812416 44897288 45029952 46849344 47076768 48313386 48547917 50413968 50509449 52705512 54997056 57538272 60331392 61733771 62769024 64417848 64730556 67218624 67345932 67544928 70274016 70615152 72470079 75620952 76717696 79058268 85890464 86307408 89794576 90059904 93698688 94153536 96626772 97095834 100827936 101018898 105411024 109994112 115076544 123467542 128835696 129461112 134437248 134691864 135089856 140548032 141230304 144940158 151241904 151528347 158116536 171780928 172614816 179589152 185201313 188307072 193253544 194191668 201655872 202037796 210822048 217410237 230153088 246935084 257671392 258922224 269383728 270179712 281096064 282460608 289880316 302483808 303056694 316233072 343561856 345229632 359178304 370402626 386507088 388383336 403311744 404075592 421644096 434820474 454585041 493870168 515342784 517844448 538767456 555603939 564921216 579760632 604967616 606113388 632466144 690459264 718356608 740805252 773014176 776766672 808151184 843288192 869640948 909170082 987740336 1030685568 1035688896 1077534912 1111207878 1159521264 1209935232 1212226776 1264932288 1481610504 1546028352 1553533344 1616302368 1666811817 1739281896 1818340164 1975480672 2071377792 2155069824 2222415756 2319042528 2424453552 2529864576 2963221008 3092056704 3107066688 3232604736 3333623634 3478563792 3636680328 3950961344 4444831512 4638085056 4848907104 5000435451 5926442016 6214133376 6465209472 6667247268 6957127584 7273360656 7901922688 8889663024 9276170112 9697814208 10000870902 11852884032 13334494536 13914255168 14546721312 17779326048 19395628416 20001741804 23705768064 26668989072 27828510336 29093442624 35558652096 40003483608 53337978144 58186885248 71117304192 80006967216 106675956288 160013934432 213351912576 320027868864 640055737728
• Sum of all divisors σ(n): 2193527245140
• Sum of proper divisors (its aliquot sum) s(n): 1553471507412
• 640055737728 is an abundant number, because the sum of its proper divisors (1553471507412) is greater than itself. Its abundance is 913415769684

Bases of 640055737728

• Binary: 1001010100000110010010110111110110000000₂
• Hexadecimal: 0x95064B7D80
• Base-36: 861CNS00

Squares and roots of 640055737728

• 640055737728 squared (640055737728²) is 409671347398534322601984
• 640055737728 cubed (640055737728³) is 262212496485192659478941613636452352
• The square root of 640055737728 is 800034.8353215627
• The cube root of 640055737728 is 8617.9889263963

Scales and comparisons

• 640,055,737,728 seconds is equal to 20,351 years, 41 weeks, 1 day, 12 hours, 28 minutes, 48 seconds.
• To count from 1 to 640,055,737,728 would take you about forty thousand, seven hundred 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 640055737728 cubic inches would be around 718.2 feet tall.

Recreational maths with 640055737728

• 640055737728 backwards is 827737550046
• 640055737728 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640055737728's digits is 54
• More coming soon!