221642168363820

Names of 221642168363820

• Cardinal: 221642168363820 can be written as Two hundred twenty-one trillion, six hundred forty-two billion, one hundred sixty-eight million, three hundred sixty-three thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.2164216836382 × 10¹⁴

Factors of 221642168363820

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 45605384447

Divisors of 221642168363820

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 243 270 324 405 486 540 810 972 1215 1620 2430 4860 45605384437 91210768874 136816153311 182421537748 228026922185 273632306622 410448459933 456053844370 547264613244 684080766555 820896919866 912107688740 1231345379799 1368161533110 1641793839732 2052242299665 2462690759598 2736323066220 3694036139397 4104484599330 4925381519196 6156726898995 7388072278794 8208969198660 11082108418191 12313453797990 14776144557588 18470180696985 22164216836382 24626907595980 36940361393970 44328433672764 55410542090955 73880722787940 110821084181910 221642168363820
• Sum of all divisors σ(n): 697215117288144
• Sum of proper divisors (its aliquot sum) s(n): 475572948924324
• 221642168363820 is an abundant number, because the sum of its proper divisors (475572948924324) is greater than itself. Its abundance is 253930780560504

Bases of 221642168363820

• Binary: 110010011001010100010110101101100110101100101100₂
• Hexadecimal: 0xC99516B66B2C
• Base-36: 26KD08EUR0

Squares and roots of 221642168363820

• 221642168363820 squared (221642168363820²) is 49125250797015931255884992400
• 221642168363820 cubed (221642168363820³) is 10888227108067087679063648583715601134968000
• The square root of 221642168363820 is 14887651.5395753403
• The cube root of 221642168363820 is 60517.9391161067

Scales and comparisons

• 221,642,168,363,820 seconds is equal to 7,047,535 years, 19 weeks, 1 day, 13 hours, 57 minutes.
• To count from 1 to 221,642,168,363,820 would take you about seventeen million, six hundred eighteen thousand, eight hundred thirty-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 221642168363820 cubic inches would be around 5043.2 feet tall.

Recreational maths with 221642168363820

• 221642168363820 backwards is 028363861246122
• 221642168363820 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 221642168363820's digits is 54
• More coming soon!