640294315808

Names of 640294315808

• Cardinal: 640294315808 can be written as Six hundred forty billion, two hundred ninety-four million, three hundred fifteen thousand, eight hundred eight.

Scientific notation

• Scientific notation: 6.40294315808 × 10¹¹

Factors of 640294315808

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 952

Divisors of 640294315808

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 7 8 14 16 19 23 28 32 38 46 56 61 76 92 112 122 133 152 157 161 184 224 244 266 304 314 322 368 427 437 488 532 608 628 644 683 736 854 874 976 1064 1099 1159 1256 1288 1366 1403 1708 1748 1952 2128 2198 2318 2512 2576 2732 2806 2983 3059 3416 3496 3611 4256 4396 4636 4781 5024 5152 5464 5612 5966 6118 6832 6992 7222 8113 8792 9272 9562 9577 9821 10928 11224 11932 12236 12977 13664 13984 14444 15709 16226 17584 18544 19124 19154 19642 20881 21856 22448 23864 24472 25277 25954 26657 28888 31418 32452 35168 37088 38248 38308 39284 41663 41762 44896 47728 48944 50554 51908 53314 57776 62836 64904 67039 68609 76496 76616 78568 83326 83524 90839 95456 97888 101108 103816 106628 107231 109963 115552 125672 129808 134078 137218 152992 153232 157136 166652 167048 181678 181963 186599 202216 207632 213256 214462 219926 220271 251344 259616 268156 274436 291641 298471 306464 314272 333304 334096 363356 363926 373198 404432 415264 426512 428924 439852 440542 480263 502688 536312 548872 583282 596942 666608 668192 726712 727852 746396 750617 791597 808864 853024 857848 879704 881084 958249 960526 1072624 1097744 1166564 1193884 1273741 1333216 1453424 1455704 1492792 1501234 1541897 1583194 1715696 1759408 1762168 1916498 1921052 2037389 2089297 2145248 2195488 2333128 2387768 2466313 2547482 2906848 2911408 2985584 3002468 3083794 3166388 3431392 3518816 3524336 3832996 3842104 4074778 4178594 4185149 4666256 4775536 4932626 5094964 5541179 5822816 5971168 6004936 6167588 6332776 6541091 6707743 7048672 7665992 7684208 8149556 8357188 8370298 9332512 9551072 9865252 10189928 11082358 12009872 12335176 12665552 13082182 13415486 14261723 15331984 15368416 16299112 16714376 16740596 17264191 18206731 19730504 20379856 22164716 24019744 24670352 25331104 26164364 26830972 28523446 29296043 30663968 32598224 33428752 33481192 34528382 36413462 39461008 40759712 44329432 45787637 46859947 49340704 52328728 53661944 57046892 58592086 65196448 66857504 66962384 69056764 72826924 78922016 88658864 91575274 93719894 104657456 107323888 114093784 117184172 124280729 127447117 133924768 138113528 145653848 150445093 177317728 183150548 187439788 209314912 214647776 228187568 234368344 248561458 254894234 276227056 291307696 300890186 328019629 366301096 374879576 456375136 468736688 497122916 509788468 552454112 582615392 601780372 656039258 732602192 749759152 869965103 937473376 994245832 1019576936 1053115651 1203560744 1312078516 1465204384 1499518304 1739930206 1988491664 2039153872 2106231302 2407121488 2624157032 2858456767 3479860412 3976983328 4078307744 4212462604 4814242976 5248314064 5716913534 6959720824 8424925208 10496628128 11433827068 13919441648 16849850416 20009197369 22867654136 27838883296 33699700832 40018394738 45735308272 80036789476 91470616544 160073578952 320147157904 640294315808
• Sum of all divisors σ(n): 1620976250880
• Sum of proper divisors (its aliquot sum) s(n): 980681935072
• 640294315808 is an abundant number, because the sum of its proper divisors (980681935072) is greater than itself. Its abundance is 340387619264

Bases of 640294315808

• Binary: 1001010100010100100000111110011100100000₂
• Hexadecimal: 0x951483E720
• Base-36: 865APC0W

Squares and roots of 640294315808

• 640294315808 squared (640294315808²) is 409976810856034838692864
• 640294315808 cubed (640294315808³) is 262505821604210653828658999931994112
• The square root of 640294315808 is 800183.9262369621
• The cube root of 640294315808 is 8619.0595664045

Scales and comparisons

• 640,294,315,808 seconds is equal to 20,359 years, 19 weeks, 4 days, 20 hours, 10 minutes, 8 seconds.
• To count from 1 to 640,294,315,808 would take you about forty thousand, seven hundred eighteen 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 640294315808 cubic inches would be around 718.3 feet tall.

Recreational maths with 640294315808

• 640294315808 backwards is 808513492046
• The number of decimal digits it has is: 12
• The sum of 640294315808's digits is 50
• More coming soon!