668320877040

Names of 668320877040

• Cardinal: 668320877040 can be written as Six hundred sixty-eight billion, three hundred twenty million, eight hundred seventy-seven thousand and forty.

Scientific notation

• Scientific notation: 6.6832087704 × 10¹¹

Factors of 668320877040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 816

Divisors of 668320877040

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 163 240 326 489 643 652 815 978 1286 1304 1630 1929 1956 2445 2572 2608 3215 3260 3858 3912 4890 5144 6430 6520 7716 7824 9645 9780 10288 12860 13040 15432 19290 19560 25720 26569 30864 38580 39120 51440 53138 77160 79707 104809 106276 132845 154320 159414 209618 212552 265690 314427 318828 398535 419236 425104 524045 531380 628854 637656 797070 838472 1048090 1062760 1257708 1275312 1572135 1594140 1676944 2096180 2125520 2515416 3144270 3188280 4192360 4330747 5030832 6288540 6376560 8384720 8661494 12577080 12992241 17083867 17322988 21653735 25154160 25984482 34167734 34645976 43307470 51251601 51968964 64961205 68335468 69291952 85419335 86614940 102503202 103937928 129922410 136670936 170838670 173229880 205006404 207875856 256258005 259844820 273341872 341677340 346459760 410012808 512516010 519689640 683354680 820025616 1025032020 1039379280 1366709360 2050064040 2784670321 4100128080 5569340642 8354010963 11138681284 13923351605 16708021926 22277362568 27846703210 33416043852 41770054815 44554725136 55693406420 66832087704 83540109630 111386812840 133664175408 167080219260 222773625680 334160438520 668320877040
• Sum of all divisors σ(n): 2087825537280
• Sum of proper divisors (its aliquot sum) s(n): 1419504660240
• 668320877040 is an abundant number, because the sum of its proper divisors (1419504660240) is greater than itself. Its abundance is 751183783200

Bases of 668320877040

• Binary: 1001101110011011000001110100100111110000₂
• Hexadecimal: 0x9B9B0749F0
• Base-36: 8J0SZT2O

Squares and roots of 668320877040

• 668320877040 squared (668320877040²) is 446652794687514799161600
• 668320877040 cubed (668320877040³) is 298507387477926943313659968689664000
• The square root of 668320877040 is 817508.9461528847
• The cube root of 668320877040 is 8743.0241087311

Scales and comparisons

• 668,320,877,040 seconds is equal to 21,250 years, 27 weeks, 6 days, 8 hours, 4 minutes.
• To count from 1 to 668,320,877,040 would take you about forty-two thousand, five hundred 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 668320877040 cubic inches would be around 728.6 feet tall.

Recreational maths with 668320877040

• 668320877040 backwards is 040778023866
• The number of decimal digits it has is: 12
• The sum of 668320877040's digits is 51
• More coming soon!