491891455016

Names of 491891455016

• Cardinal: 491891455016 can be written as Four hundred ninety-one billion, eight hundred ninety-one million, four hundred fifty-five thousand and sixteen.

Scientific notation

• Scientific notation: 4.91891455016 × 10¹¹

Factors of 491891455016

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 821

Divisors of 491891455016

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 13 26 52 97 104 194 388 709 776 1261 1418 2522 2836 5044 5672 9217 9409 10088 18434 18818 36868 37636 68773 73736 75272 122317 137546 244634 275092 489268 502681 550184 894049 978536 1005362 1788098 2010724 3576196 4021448 6534853 6670981 7152392 13069706 13341962 26139412 26683924 48760057 52278824 53367848 86722753 97520114 173445506 195040228 346891012 390080456 633880741 693782024 1267761482 2535522964 4729725529 5071045928 9459451058 18918902116 37837804232 61486431877 122972863754 245945727508 491891455016
• Sum of all divisors σ(n): 1005005029770
• Sum of proper divisors (its aliquot sum) s(n): 513113574754
• 491891455016 is an abundant number, because the sum of its proper divisors (513113574754) is greater than itself. Its abundance is 21222119738

Bases of 491891455016

• Binary: 111001010000111000000111111010000101000₂
• Hexadecimal: 0x728703F428
• Base-36: 69YZGZS8

Squares and roots of 491891455016

• 491891455016 squared (491891455016²) is 241957203517757551560256
• 491891455016 cubed (491891455016³) is 119016680889952195630495964837444096
• The square root of 491891455016 is 701349.7380166331
• The cube root of 491891455016 is 7893.8661729527

Scales and comparisons

• 491,891,455,016 seconds is equal to 15,640 years, 32 weeks, 4 days, 3 hours, 16 minutes, 56 seconds.
• To count from 1 to 491,891,455,016 would take you about thirty-one thousand, two hundred eighty-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 491891455016 cubic inches would be around 657.8 feet tall.

Recreational maths with 491891455016

• 491891455016 backwards is 610554198194
• The number of decimal digits it has is: 12
• The sum of 491891455016's digits is 53
• More coming soon!