640389050340

Names of 640389050340

• Cardinal: 640389050340 can be written as Six hundred forty billion, three hundred eighty-nine million, fifty thousand, three hundred forty.

Scientific notation

• Scientific notation: 6.4038905034 × 10¹¹

Factors of 640389050340

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1865

Divisors of 640389050340

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 10 12 13 15 19 20 26 30 38 39 52 57 60 65 76 78 95 114 130 156 163 179 190 195 228 247 260 285 326 358 380 390 489 494 537 570 652 716 741 780 815 895 978 988 1074 1140 1235 1481 1482 1630 1790 1956 2119 2148 2327 2445 2470 2685 2962 2964 3097 3260 3401 3580 3705 4238 4443 4654 4890 4940 5370 5924 6194 6357 6802 6981 7405 7410 8476 8886 9291 9308 9780 10203 10595 10740 11635 12388 12714 13604 13962 14810 14820 15485 17005 17772 18582 19253 20406 21190 22215 23270 25428 27924 28139 29177 29620 30970 31785 34010 34905 37164 38506 40261 40812 42380 44213 44430 46455 46540 51015 56278 57759 58354 61940 63570 68020 69810 77012 80522 84417 87531 88426 88860 92910 96265 102030 112556 115518 116708 120783 127140 132639 139620 140695 145885 161044 168834 175062 176852 185820 192530 201305 204060 221065 231036 241403 241566 265099 265278 281390 288795 291770 337668 350124 365807 379301 385060 402610 422085 437655 442130 482806 483132 530198 530556 554363 562780 577590 583540 603915 663195 724209 731614 758602 795297 805220 844170 875310 884260 965612 1060396 1097421 1108726 1137903 1155180 1207015 1207830 1325495 1326390 1448418 1463228 1517204 1590594 1663089 1688340 1750620 1829035 1896505 2194842 2217452 2275806 2414030 2415660 2650990 2652780 2771815 2896836 3138239 3181188 3326178 3446287 3621045 3658070 3793010 3976485 4389684 4551612 4586657 4828060 5036881 5301980 5487105 5543630 5689515 6276478 6652356 6892574 7206719 7242090 7316140 7586020 7952970 8315445 9173314 9414717 10073762 10338861 10974210 11087260 11379030 12552956 13759971 13785148 14413438 14484180 15110643 15691195 15905940 16630890 17231435 18346628 18829434 20147524 20677722 21620157 21948420 22758060 22933285 25184405 27519942 28826876 30221286 31382390 33261780 34462870 36033595 37658868 41355444 43211137 43240314 45866570 47073585 50368810 51694305 55039884 59626541 60442572 62764780 65479453 68799855 68925740 72067190 75553215 86422274 86480628 91733140 94147170 100737620 103388610 108100785 119253082 129633411 130958906 137599710 144134380 151106430 172844548 178879623 188294340 196438359 206777220 216055685 216201570 238506164 259266822 261917812 275199420 298132705 302212860 327397265 357759246 392876718 432111370 432403140 518533644 561744781 596265410 648167055 654794530 715518492 785753436 821011603 864222740 894398115 982191795 1123489562 1192530820 1296334110 1309589060 1642023206 1685234343 1788796230 1964383590 2246979124 2463034809 2592668220 2808723905 3284046412 3370468686 3577592460 3928767180 4105058015 4926069618 5617447810 6740937372 8210116030 8426171715 9852139236 10673150839 11234895620 12315174045 16420232060 16852343430 21346301678 24630348090 32019452517 33704686860 42692603356 49260696180 53365754195 64038905034 106731508390 128077810068 160097262585 213463016780 320194525170 640389050340
• Sum of all divisors σ(n): 2057936025600
• Sum of proper divisors (its aliquot sum) s(n): 1417546975260
• 640389050340 is an abundant number, because the sum of its proper divisors (1417546975260) is greater than itself. Its abundance is 777157924920

Bases of 640389050340

• Binary: 1001010100011010001010010110111111100100₂
• Hexadecimal: 0x951A296FE4
• Base-36: 866V3TNO

Squares and roots of 640389050340

• 640389050340 squared (640389050340²) is 410098135795367054115600
• 640389050340 cubed (640389050340³) is 262622355728199468356812472579304000
• The square root of 640389050340 is 800243.1195205617
• The cube root of 640389050340 is 8619.4846221371

Scales and comparisons

• 640,389,050,340 seconds is equal to 20,362 years, 20 weeks, 2 days, 7 hours, 19 minutes.
• To count from 1 to 640,389,050,340 would take you about forty thousand, seven hundred twenty-four 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 640389050340 cubic inches would be around 718.3 feet tall.

Recreational maths with 640389050340

• 640389050340 backwards is 043050983046
• The number of decimal digits it has is: 12
• The sum of 640389050340's digits is 42
• More coming soon!