991797429042

Names of 991797429042

• Cardinal: 991797429042 can be written as Nine hundred ninety-one billion, seven hundred ninety-seven million, four hundred twenty-nine thousand and forty-two.

Scientific notation

• Scientific notation: 9.91797429042 × 10¹¹

Factors of 991797429042

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 27716

Divisors of 991797429042

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 343 441 686 882 1029 2058 3087 6174 8263 16526 19441 24789 38882 49578 57841 58323 74367 115682 116646 136087 148734 173523 174969 272174 347046 349938 404887 408261 520569 809774 816522 952609 1041138 1214661 1224783 1905218 2429322 2449566 2834209 2857827 3643983 5668418 5715654 6668263 7287966 8502627 8573481 13336526 17005254 17146962 20004789 25507881 40009578 51015762 60014367 120028734 160640983 321281966 481922949 963845898 1124486881 1445768847 2248973762 2891537694 3373460643 6746921286 7871408167 10120381929 15742816334 20240763858 23614224501 47228449002 55099857169 70842673503 110199714338 141685347006 165299571507 330599143014 495898714521 991797429042
• Sum of all divisors σ(n): 2506431532800
• Sum of proper divisors (its aliquot sum) s(n): 1514634103758
• 991797429042 is an abundant number, because the sum of its proper divisors (1514634103758) is greater than itself. Its abundance is 522836674716

Bases of 991797429042

• Binary: 1110011011101011101110111100001100110010₂
• Hexadecimal: 0xE6EBBBC332
• Base-36: CNMIKY0I

Squares and roots of 991797429042

• 991797429042 squared (991797429042²) is 983662140254321025037764
• 991797429042 cubed (991797429042³) is 975593581750186808663780446160342088
• The square root of 991797429042 is 995890.2695789331
• The cube root of 991797429042 is 9972.5829962945

Scales and comparisons

• 991,797,429,042 seconds is equal to 31,536 years, 4 weeks, 4 days, 21 hours, 50 minutes, 42 seconds.
• To count from 1 to 991,797,429,042 would take you about sixty-three thousand and seventy-two 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 991797429042 cubic inches would be around 831 feet tall.

Recreational maths with 991797429042

• 991797429042 backwards is 240924797199
• 991797429042 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 991797429042's digits is 63
• More coming soon!