640144987842800

Names of 640144987842800

• Cardinal: 640144987842800 can be written as Six hundred forty trillion, one hundred forty-four billion, nine hundred eighty-seven million, eight hundred forty-two thousand, eight hundred.

Scientific notation

• Scientific notation: 6.401449878428 × 10¹⁴

Factors of 640144987842800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1881640

Divisors of 640144987842800

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 25 40 44 50 55 80 88 100 110 176 200 220 275 400 440 550 880 1100 2200 4400 80789 161578 323156 403945 646312 807890 888679 1292624 1615780 1777358 1800833 2019725 3231560 3554716 3601666 4039450 4443395 6463120 7109432 7203332 8078900 8886790 9004165 14218864 14406664 16157800 17773580 18008330 19809163 22216975 28813328 32315600 35547160 36016660 39618326 44433950 45020825 71094320 72033320 79236652 88867900 90041650 99045815 144066640 158473304 177735800 180083300 198091630 316946608 355471600 360166600 396183260 495229075 720333200 792366520 990458150 1584733040 1980916300 3961832600 7923665200 145487497237 290974994474 581949988948 727437486185 1163899977896 1454874972370 1600362469607 2327799955792 2909749944740 3200724939214 3637187430925 5819499889480 6401449878428 7274374861850 8001812348035 11638999778960 12802899756856 14548749723700 16003624696070 25605799513712 29097499447400 32007249392140 40009061740175 58194998894800 64014498784280 80018123480350 128028997568560 160036246960700 320072493921400 640144987842800
• Sum of all divisors σ(n): 1677783517013520
• Sum of proper divisors (its aliquot sum) s(n): 1037638529170720
• 640144987842800 is an abundant number, because the sum of its proper divisors (1037638529170720) is greater than itself. Its abundance is 397493541327920

Bases of 640144987842800

• Binary: 10010001100011010101011110100110101110100011110000₂
• Hexadecimal: 0x246355E9AE8F0
• Base-36: 6AWUJPPHBK

Squares and roots of 640144987842800

• 640144987842800 squared (640144987842800²) is 409785605460258559797511840000
• 640144987842800 cubed (640144987842800³) is 262322201425511653060122853646489058752000000
• The square root of 640144987842800 is 25301086.6929228951
• The cube root of 640144987842800 is 86183.8947523777

Scales and comparisons

• 640,144,987,842,800 seconds is equal to 20,354,630 years, 26 weeks, 5 days, 10 hours, 33 minutes, 20 seconds.
• To count from 1 to 640,144,987,842,800 would take you about fifty million, eight hundred eighty-six thousand, five hundred seventy-six 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 640144987842800 cubic inches would be around 7182 feet tall.

Recreational maths with 640144987842800

• 640144987842800 backwards is 008248789441046
• The number of decimal digits it has is: 15
• The sum of 640144987842800's digits is 65
• More coming soon!