640334430890

Names of 640334430890

• Cardinal: 640334430890 can be written as Six hundred forty billion, three hundred thirty-four million, four hundred thirty thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 6.4033443089 × 10¹¹

Factors of 640334430890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 85

Divisors of 640334430890

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 5 7 10 11 14 22 23 35 37 46 49 55 70 74 77 98 110 115 121 154 161 185 230 242 245 253 259 322 343 370 385 407 490 506 518 539 605 686 770 805 814 847 851 1078 1127 1210 1265 1295 1369 1610 1694 1702 1715 1771 1813 2035 2254 2401 2530 2590 2695 2738 2783 2849 3430 3542 3626 3773 4070 4235 4255 4477 4802 5390 5566 5635 5698 5929 5957 6845 7546 7889 8470 8510 8855 8954 9065 9361 9583 11270 11858 11914 12005 12397 12691 13690 13915 14245 15059 15778 16807 17710 18130 18722 18865 19166 19481 19943 22385 24010 24794 25382 26411 27830 28490 29645 29785 30118 31339 31487 33614 37730 38962 39445 39886 41503 41699 44770 46805 47915 52822 55223 59290 59570 61985 62678 62974 63455 65527 67081 75295 78890 83006 83398 84035 86779 88837 93610 95830 97405 99715 102971 105413 110446 123970 126910 131054 132055 134162 136367 139601 150590 156695 157435 165649 168070 173558 177674 184877 194810 199430 205942 207515 208495 210826 219373 220409 264110 272734 276115 279202 290521 291893 313390 314870 327635 331298 335405 346357 369754 386561 415030 416990 433895 438746 440818 444185 458689 469567 514855 527065 552230 581042 583786 607453 621859 655270 670810 681835 692714 698005 720797 737891 773122 828245 867790 888370 917378 924385 939134 954569 977207 1029710 1054130 1096865 1102045 1159543 1214906 1243718 1363670 1396010 1441594 1452605 1459465 1475782 1535611 1542863 1656490 1731785 1848770 1909138 1932805 1954414 2033647 2043251 2193730 2204090 2293445 2319086 2347835 2424499 2905210 2918930 3037265 3071222 3085726 3109295 3210823 3286969 3463570 3603985 3689455 3809927 3865610 4067294 4086502 4252171 4586890 4695670 4772845 4848998 4886035 5045579 5165237 5797715 6074530 6218590 6421646 6573938 6681983 6840449 7207970 7378910 7619854 7678055 7714315 8116801 8504342 9545690 9772070 10091158 10168235 10216255 10330474 10749277 10800041 11595430 12122495 13363966 13680898 14302757 15356110 15428630 16054115 16233602 16434845 16971493 19049635 20336470 20432510 21260855 21498554 21600082 22475761 23008783 24244990 25227895 25826185 26669489 28605514 32108230 32869690 33409915 33942986 34202245 35319053 36156659 38099270 40584005 42521710 44951522 46017566 46773881 50455790 51652370 53338978 53746385 54000205 56817607 66819830 68404490 70638106 71513785 72313318 75244939 75600287 81168010 84857465 93547762 107492770 108000410 112378805 113635214 115043915 118800451 133347445 143027570 150489878 151200574 157330327 169714930 176595265 180783295 186686423 224757610 230087830 233869405 237600902 247233371 253096613 266694890 284088035 314660654 353190530 361566590 373372846 376224695 378001435 397723249 467738810 494466742 506193226 529202009 568176070 594002255 752449390 756002870 786651635 795446498 831603157 933432115 1058404018 1188004510 1236166855 1265483065 1306804961 1573303270 1663206314 1730633597 1866864230 1988616245 2472333710 2530966130 2613609922 2646010045 2784062743 3461267194 3977232490 4158015785 5292020090 5568125486 5821222099 6534024805 8316031570 8653167985 9147634727 11642444198 13068049610 13920313715 17306335970 18295269454 27840627430 29106110495 45738173635 58212220990 64033443089 91476347270 128066886178 320167215445 640334430890
• Sum of all divisors σ(n): 1585122327936
• Sum of proper divisors (its aliquot sum) s(n): 944787897046
• 640334430890 is an abundant number, because the sum of its proper divisors (944787897046) is greater than itself. Its abundance is 304453466156

Bases of 640334430890

• Binary: 1001010100010110111010000000001010101010₂
• Hexadecimal: 0x9516E802AA
• Base-36: 865YL50Q

Squares and roots of 640334430890

• 640334430890 squared (640334430890²) is 410028183383220186192100
• 640334430890 cubed (640334430890³) is 262555163455554852700878189713969000
• The square root of 640334430890 is 800208.9920077129
• The cube root of 640334430890 is 8619.2395602253

Scales and comparisons

• 640,334,430,890 seconds is equal to 20,360 years, 34 weeks, 3 hours, 14 minutes, 50 seconds.
• To count from 1 to 640,334,430,890 would take you about forty thousand, seven hundred twenty-one 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 640334430890 cubic inches would be around 718.3 feet tall.

Recreational maths with 640334430890

• 640334430890 backwards is 098034433046
• The number of decimal digits it has is: 12
• The sum of 640334430890's digits is 44
• More coming soon!