3991275393939

Names of 3991275393939

• Cardinal: 3991275393939 can be written as Three trillion, nine hundred ninety-one billion, two hundred seventy-five million, three hundred ninety-three thousand, nine hundred thirty-nine.

Scientific notation

• Scientific notation: 3.991275393939 × 10¹²

Factors of 3991275393939

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 894

Divisors of 3991275393939

• Number of divisors d(n): 54
• Complete list of divisors:
  1 3 9 79 237 379 433 711 1137 1299 3411 3897 6241 18723 29941 34207 56169 89823 102621 164107 187489 269469 307863 492321 562467 1476963 1687401 2365339 2702353 7096017 8107059 12964453 14811631 21288051 24321177 38893359 44434893 71058331 116680077 133304679 213174993 639524979 1024191787 1170118849 3072575361 3510356547 5613608149 9217726083 10531069641 16840824447 50522473341 443475043771 1330425131313 3991275393939
• Sum of all divisors σ(n): 5868034738020
• Sum of proper divisors (its aliquot sum) s(n): 1876759344081
• 3991275393939 is a deficient number, because the sum of its proper divisors (1876759344081) is less than itself. Its deficiency is 2114516049858

Bases of 3991275393939

• Binary: 111010000101001010100011010101001110010011₂
• Hexadecimal: 0x3A14A8D5393
• Base-36: 1EXKEBFYR

Squares and roots of 3991275393939

• 3991275393939 squared (3991275393939²) is 15930279270262919637935721
• 3991275393939 cubed (3991275393939³) is 63582131669976920026006194083034995019
• The square root of 3991275393939 is 1997817.6578304137
• The cube root of 3991275393939 is 15862.4609110927

Scales and comparisons

• 3,991,275,393,939 seconds is equal to 126,910 years, 11 weeks, 1 hour, 25 minutes, 39 seconds.
• To count from 1 to 3,991,275,393,939 would take you about three hundred seventeen thousand, two hundred seventy-five 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 3991275393939 cubic inches would be around 1321.9 feet tall.

Recreational maths with 3991275393939

• 3991275393939 backwards is 9393935721993
• The number of decimal digits it has is: 13
• The sum of 3991275393939's digits is 72
• More coming soon!