991042229772

Names of 991042229772

• Cardinal: 991042229772 can be written as Nine hundred ninety-one billion, forty-two million, two hundred twenty-nine thousand, seven hundred seventy-two.

Scientific notation

• Scientific notation: 9.91042229772 × 10¹¹

Factors of 991042229772

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 561815335

Divisors of 991042229772

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 147 196 252 294 441 588 882 1764 561815323 1123630646 1685445969 2247261292 3370891938 3932707261 5056337907 6741783876 7865414522 10112675814 11798121783 15730829044 20225351628 23596243566 27528950827 35394365349 47192487132 55057901654 70788730698 82586852481 110115803308 141577461396 165173704962 247760557443 330347409924 495521114886 991042229772
• Sum of all divisors σ(n): 2914136085588
• Sum of proper divisors (its aliquot sum) s(n): 1923093855816
• 991042229772 is an abundant number, because the sum of its proper divisors (1923093855816) is greater than itself. Its abundance is 932051626044

Bases of 991042229772

• Binary: 1110011010111110101110000101011000001100₂
• Hexadecimal: 0xE6BEB8560C
• Base-36: CNA0YEJ0

Squares and roots of 991042229772

• 991042229772 squared (991042229772²) is 982164701191457643171984
• 991042229772 cubed (991042229772³) is 973366695472132287768054954241107648
• The square root of 991042229772 is 995511.0395028275
• The cube root of 991042229772 is 9970.0511621581

Scales and comparisons

• 991,042,229,772 seconds is equal to 31,512 years, 4 weeks, 4 hours, 16 minutes, 12 seconds.
• To count from 1 to 991,042,229,772 would take you about sixty-three thousand and twenty-four 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 991042229772 cubic inches would be around 830.8 feet tall.

Recreational maths with 991042229772

• 991042229772 backwards is 277922240199
• The number of decimal digits it has is: 12
• The sum of 991042229772's digits is 54
• More coming soon!