642733961940

Names of 642733961940

• Cardinal: 642733961940 can be written as Six hundred forty-two billion, seven hundred thirty-three million, nine hundred sixty-one thousand, nine hundred forty.

Scientific notation

• Scientific notation: 6.4273396194 × 10¹¹

Factors of 642733961940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 26847737

Divisors of 642733961940

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 19 20 21 28 30 35 36 38 42 45 57 60 63 70 76 84 90 95 105 114 126 133 140 171 180 190 210 228 252 266 285 315 342 380 399 420 532 570 630 665 684 798 855 1140 1197 1260 1330 1596 1710 1995 2394 2660 3420 3990 4788 5985 7980 11970 23940 26847701 53695402 80543103 107390804 134238505 161086206 187933907 241629309 268477010 322172412 375867814 402715515 483258618 510106319 536954020 563801721 751735628 805431030 939669535 966517236 1020212638 1127603442 1208146545 1530318957 1610862060 1691405163 1879339070 2040425276 2255206884 2416293090 2550531595 2819008605 3060637914 3382810326 3570744233 3758678140 4590956871 4832586180 5101063190 5638017210 6121275828 6765620652 7141488466 7651594785 8457025815 9181913742 10202126380 10712232699 11276034420 14282976932 15303189570 16914051630 17853721165 18363827484 21424465398 22954784355 30606379140 32136698097 33828103260 35707442330 42848930796 45909568710 53561163495 64273396194 71414884660 91819137420 107122326990 128546792388 160683490485 214244653980 321366980970 642733961940
• Sum of all divisors σ(n): 2345415246720
• Sum of proper divisors (its aliquot sum) s(n): 1702681284780
• 642733961940 is an abundant number, because the sum of its proper divisors (1702681284780) is greater than itself. Its abundance is 1059947322840

Bases of 642733961940

• Binary: 1001010110100101111011011111001011010100₂
• Hexadecimal: 0x95A5EDF2D4
• Base-36: 879N7F10

Squares and roots of 642733961940

• 642733961940 squared (642733961940²) is 413106945831089368563600
• 642733961940 cubed (642733961940³) is 265517863998949035883095514869384000
• The square root of 642733961940 is 801706.9052590229
• The cube root of 642733961940 is 8629.9924582367

Scales and comparisons

• 642,733,961,940 seconds is equal to 20,436 years, 49 weeks, 3 days, 11 hours, 39 minutes.
• To count from 1 to 642,733,961,940 would take you about forty thousand, eight hundred seventy-three 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 642733961940 cubic inches would be around 719.2 feet tall.

Recreational maths with 642733961940

• 642733961940 backwards is 049169337246
• The number of decimal digits it has is: 12
• The sum of 642733961940's digits is 54
• More coming soon!