990905017473

Names of 990905017473

• Cardinal: 990905017473 can be written as Nine hundred ninety billion, nine hundred five million, seventeen thousand, four hundred seventy-three.

Scientific notation

• Scientific notation: 9.90905017473 × 10¹¹

Factors of 990905017473

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 131191

Divisors of 990905017473

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 21 31 49 63 79 93 147 217 237 279 343 441 553 651 711 1029 1519 1659 1953 2449 3087 3871 4557 4977 7347 10633 11613 13671 17143 22041 27097 31899 34839 51429 81291 95697 120001 131071 154287 243873 360003 393213 840007 917497 1080009 1179639 2520021 2752491 4063201 6422479 7560063 8257473 10354609 12189603 19267437 28442407 31063827 36568809 44957353 57802311 72482263 85327221 93191481 134872059 199096849 217446789 255981663 320992879 404616177 507375841 597290547 652340367 962978637 1393677943 1522127523 1791871641 2246950153 2888935911 3551630887 4181033829 4566382569 6740850459 10654892661 12543101487 15728651071 20222551377 31964677983 47185953213 110100557497 141557859639 330301672491 990905017473
• Sum of all divisors σ(n): 1744830464000
• Sum of proper divisors (its aliquot sum) s(n): 753925446527
• 990905017473 is a deficient number, because the sum of its proper divisors (753925446527) is less than itself. Its deficiency is 236979570946

Bases of 990905017473

• Binary: 1110011010110110100010101010010010000001₂
• Hexadecimal: 0xE6B68AA481
• Base-36: CN7R9GU9

Squares and roots of 990905017473

• 990905017473 squared (990905017473²) is 981892753653166435305729
• 990905017473 cubed (990905017473³) is 972962456215302971158400518842002817
• The square root of 990905017473 is 995442.1216087855
• The cube root of 990905017473 is 9969.5910146691

Scales and comparisons

• 990,905,017,473 seconds is equal to 31,507 years, 37 weeks, 1 day, 1 hour, 44 minutes, 33 seconds.
• To count from 1 to 990,905,017,473 would take you about sixty-three thousand and fifteen 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 990905017473 cubic inches would be around 830.8 feet tall.

Recreational maths with 990905017473

• 990905017473 backwards is 374710509099
• The number of decimal digits it has is: 12
• The sum of 990905017473's digits is 54
• More coming soon!