640103751090720

Names of 640103751090720

• Cardinal: 640103751090720 can be written as Six hundred forty trillion, one hundred three billion, seven hundred fifty-one million, ninety thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 6.4010375109072 × 10¹⁴

Factors of 640103751090720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 63502356276

Divisors of 640103751090720

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 70 72 80 84 90 96 105 112 120 126 140 144 160 168 180 210 224 240 252 280 288 315 336 360 420 480 504 560 630 672 720 840 1008 1120 1260 1440 1680 2016 2520 3360 5040 10080 63502356259 127004712518 190507068777 254009425036 317511781295 381014137554 444516493813 508018850072 571521206331 635023562590 762028275108 889032987626 952535343885 1016037700144 1143042412662 1270047125180 1333549481439 1524056550216 1778065975252 1905070687770 2032075400288 2222582469065 2286084825324 2540094250360 2667098962878 2857606031655 3048113100432 3556131950504 3810141375540 4000648444317 4445164938130 4572169650648 5080188500720 5334197925756 5715212063310 6096226200864 6667747407195 7112263901008 7620282751080 8001296888634 8890329876260 9144339301296 10160377001440 10668395851512 11430424126620 13335494814390 14224527802016 15240565502160 16002593777268 17780659752520 18288678602592 20003242221585 21336791703024 22860848253240 26670989628780 30481131004320 32005187554536 35561319505040 40006484443170 42673583406048 45721696506480 53341979257560 64010375109072 71122639010080 80012968886340 91443393012960 106683958515120 128020750218144 160025937772680 213367917030240 320051875545360 640103751090720
• Sum of all divisors σ(n): 2496404629293120
• Sum of proper divisors (its aliquot sum) s(n): 1856300878202400
• 640103751090720 is an abundant number, because the sum of its proper divisors (1856300878202400) is greater than itself. Its abundance is 1216197127111680

Bases of 640103751090720

• Binary: 10010001100010101111000100101101000000001000100000₂
• Hexadecimal: 0x2462BC4B40220
• Base-36: 6AWBLQERS0

Squares and roots of 640103751090720

• 640103751090720 squared (640103751090720²) is 409732812160410425589670118400
• 640103751090720 cubed (640103751090720³) is 262271510008828087838646663449948991541248000
• The square root of 640103751090720 is 25300271.7592266191
• The cube root of 640103751090720 is 86182.0441194303

Scales and comparisons

• 640,103,751,090,720 seconds is equal to 20,353,319 years, 16 weeks, 2 days, 5 hours, 12 minutes.
• To count from 1 to 640,103,751,090,720 would take you about fifty million, eight hundred eighty-three thousand, two hundred ninety-eight 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 640103751090720 cubic inches would be around 7181.8 feet tall.

Recreational maths with 640103751090720

• 640103751090720 backwards is 027090157301046
• 640103751090720 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 640103751090720's digits is 45
• More coming soon!