640338609456

Names of 640338609456

• Cardinal: 640338609456 can be written as Six hundred forty billion, three hundred thirty-eight million, six hundred nine thousand, four hundred fifty-six.

Scientific notation

• Scientific notation: 6.40338609456 × 10¹¹

Factors of 640338609456

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 50905

Divisors of 640338609456

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 31 36 39 42 48 52 56 62 63 72 78 84 91 93 104 112 117 124 126 144 156 168 182 186 208 217 234 248 252 273 279 312 336 364 372 403 434 468 496 504 546 558 624 651 728 744 806 819 868 936 961 1008 1092 1116 1209 1302 1456 1488 1612 1638 1736 1872 1922 1953 2184 2232 2418 2604 2821 2883 3224 3276 3472 3627 3844 3906 4368 4464 4836 5208 5642 5766 6448 6552 6727 7254 7688 7812 8463 8649 9672 10416 11284 11532 12493 13104 13454 14508 15376 15624 16926 17298 19344 20181 22568 23064 24986 25389 26908 29016 31248 33852 34596 37479 40362 45136 46128 49972 50778 50849 53816 58032 60543 67704 69192 74958 80724 87451 99944 101556 101698 107632 112437 121086 135408 138384 149916 152547 161448 174902 199888 203112 203396 224874 242172 262353 299832 305094 322896 349804 355943 406224 406792 449748 457641 484344 524706 599664 610188 661037 699608 711886 787059 813584 899496 915282 968688 1049412 1067829 1220376 1322074 1399216 1423772 1574118 1576319 1798992 1830564 1983111 2098824 2135658 2440752 2644148 2847544 3148236 3152638 3203487 3661128 3966222 4197648 4271316 4627259 4728957 5288296 5695088 5949333 6296472 6305276 6406974 7322256 7932444 8542632 9254518 9457914 10576592 11034233 11898666 12592944 12610552 12813948 13881777 14186871 15864888 17085264 18509036 18915828 20492147 22068466 23797332 25221104 25627896 27763554 28373742 31729776 33102699 37018072 37831656 40984294 41645331 44136932 47594664 48865889 51255792 55527108 56747484 61476441 66205398 74036144 75663312 81968588 83290662 88273864 95189328 97731778 99308097 111054216 113494968 122952882 132410796 143445029 146597667 163937176 166581324 176547728 184429323 195463556 198616194 222108432 226989936 245905764 264821592 286890058 293195334 327874352 333162648 342061223 368858646 390927112 397232388 430335087 439793001 491811528 529643184 573780116 586390668 635256557 666325296 684122446 737717292 781854224 794464776 860670174 879586002 983623056 1026183669 1147560232 1172781336 1270513114 1291005261 1368244892 1475434584 1588929552 1721340348 1759172004 1905769671 2052367338 2295120464 2345562672 2541026228 2582010522 2736489784 2950869168 3078551007 3442680696 3518344008 3811539342 4104734676 4446795899 5082052456 5164021044 5472979568 5717309013 6157102014 6885361392 7036688016 7623078684 8209469352 8893591798 10164104912 10328042088 11434618026 12314204028 13340387697 15246157368 16418938704 17787183596 20656084176 22869236052 24628408056 26680775394 30492314736 35574367192 40021163091 45738472104 49256816112 53361550788 71148734384 80042326182 91476944208 106723101576 160084652364 213446203152 320169304728 640338609456
• Sum of all divisors σ(n): 2279099440800
• Sum of proper divisors (its aliquot sum) s(n): 1638760831344
• 640338609456 is an abundant number, because the sum of its proper divisors (1638760831344) is greater than itself. Its abundance is 998422221888

Bases of 640338609456

• Binary: 1001010100010111001001111100010100110000₂
• Hexadecimal: 0x951727C530
• Base-36: 86612P80

Squares and roots of 640338609456

• 640338609456 squared (640338609456²) is 410033534760043692615936
• 640338609456 cubed (640338609456³) is 262560303478574818759491953305890816
• The square root of 640338609456 is 800211.6029251263
• The cube root of 640338609456 is 8619.2583087527

Scales and comparisons

• 640,338,609,456 seconds is equal to 20,360 years, 40 weeks, 6 days, 11 hours, 57 minutes, 36 seconds.
• To count from 1 to 640,338,609,456 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 640338609456 cubic inches would be around 718.3 feet tall.

Recreational maths with 640338609456

• 640338609456 backwards is 654906833046
• The number of decimal digits it has is: 12
• The sum of 640338609456's digits is 54
• More coming soon!