221742847521

Names of 221742847521

• Cardinal: 221742847521 can be written as Two hundred twenty-one billion, seven hundred forty-two million, eight hundred forty-seven thousand, five hundred twenty-one.

Scientific notation

• Scientific notation: 2.21742847521 × 10¹¹

Factors of 221742847521

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 491

Divisors of 221742847521

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 9 13 17 37 39 51 111 117 153 221 289 333 421 481 629 663 867 1263 1443 1887 1989 2601 3757 3789 4329 5473 5661 7157 8177 10693 11271 15577 16419 21471 24531 32079 33813 46731 49257 64413 73593 93041 96237 121669 139009 140193 177241 202501 264809 279123 365007 417027 531723 607503 794427 837369 1095021 1251081 1581697 1595169 1822509 2304133 2383281 3013097 3442517 4501753 4745091 6557917 6912399 9039291 10327551 13505259 14235273 19673751 20737197 27117873 30982653 39170261 40515777 51222649 58522789 59021253 85252921 111484589 117510783 153667947 175568367 255758763 334453767 352532349 461003841 526705101 665894437 767276289 1003361301 1449299657 1895238013 1997683311 4347898971 5685714039 5993049933 13043696913 17057142117 24638094169 73914282507 221742847521
• Sum of all divisors σ(n): 377216213556
• Sum of proper divisors (its aliquot sum) s(n): 155473366035
• 221742847521 is a deficient number, because the sum of its proper divisors (155473366035) is less than itself. Its deficiency is 66269481486

Bases of 221742847521

• Binary: 11001110100000111001110101011000100001₂
• Hexadecimal: 0x33A0E75621
• Base-36: 2TV7YS69

Squares and roots of 221742847521

• 221742847521 squared (221742847521²) is 49169890426721455845441
• 221742847521 cubed (221742847521³) is 10903071515516773407474757806001761
• The square root of 221742847521 is 470895.7926346337
• The cube root of 221742847521 is 6052.7100989999

Scales and comparisons

• 221,742,847,521 seconds is equal to 7,050 years, 38 weeks, 2 days, 3 hours, 25 minutes, 21 seconds.
• To count from 1 to 221,742,847,521 would take you about fourteen thousand, one 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 221742847521 cubic inches would be around 504.4 feet tall.

Recreational maths with 221742847521

• 221742847521 backwards is 125748247122
• The number of decimal digits it has is: 12
• The sum of 221742847521's digits is 45
• More coming soon!