990792186021

Names of 990792186021

• Cardinal: 990792186021 can be written as Nine hundred ninety billion, seven hundred ninety-two million, one hundred eighty-six thousand and twenty-one.

Scientific notation

• Scientific notation: 9.90792186021 × 10¹¹

Factors of 990792186021

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 16928

Divisors of 990792186021

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 11 19 33 57 99 109 171 209 293 327 627 879 981 1199 1881 2071 2637 3223 3597 5567 6213 9669 10791 16493 16701 18639 22781 29007 31937 49479 50103 61237 68343 95811 148437 181423 183711 205029 287433 313367 351307 544269 551133 606803 940101 1053921 1632807 1797737 1820409 2820303 3161763 3447037 4832449 5393211 5461227 6674833 10341111 14497347 16179633 19775107 20024499 31023333 34157003 43492041 53156939 59325321 60073497 91816531 102471009 159470817 177975963 275449593 307413027 375727033 478412451 526736941 826348779 1009981841 1127181099 1580210823 3029945523 3381543297 4740632469 5794106351 9089836569 10008001879 17382319053 30024005637 52146957159 90072016911 110088020669 330264062007 990792186021
• Sum of all divisors σ(n): 1664257795200
• Sum of proper divisors (its aliquot sum) s(n): 673465609179
• 990792186021 is a deficient number, because the sum of its proper divisors (673465609179) is less than itself. Its deficiency is 317326576842

Bases of 990792186021

• Binary: 1110011010101111110100001111100010100101₂
• Hexadecimal: 0xE6AFD0F8A5
• Base-36: CN5W33J9

Squares and roots of 990792186021

• 990792186021 squared (990792186021²) is 981669155880271867812441
• 990792186021 cubed (990792186021³) is 972630128904004370457677165610087261
• The square root of 990792186021 is 995385.4459559875
• The cube root of 990792186021 is 9969.2125975963

Scales and comparisons

• 990,792,186,021 seconds is equal to 31,504 years, 6 weeks, 4 days, 3 hours, 40 minutes, 21 seconds.
• To count from 1 to 990,792,186,021 would take you about sixty-three thousand and 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 990792186021 cubic inches would be around 830.8 feet tall.

Recreational maths with 990792186021

• 990792186021 backwards is 120681297099
• The number of decimal digits it has is: 12
• The sum of 990792186021's digits is 54
• More coming soon!