666993042

Names of 666993042

• Cardinal: 666993042 can be written as Six hundred sixty-six million, nine hundred ninety-three thousand and forty-two.

Scientific notation

• Scientific notation: 6.66993042 × 10⁸

Factors of 666993042

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7295

Divisors of 666993042

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 3 6 9 18 27 54 81 162 617 1234 1851 3702 5553 6673 11106 13346 16659 20019 33318 40038 49977 60057 99954 120114 180171 360342 540513 1081026 4117241 8234482 12351723 24703446 37055169 74110338 111165507 222331014 333496521 666993042
• Sum of all divisors σ(n): 1497205116
• Sum of proper divisors (its aliquot sum) s(n): 830212074
• 666993042 is an abundant number, because the sum of its proper divisors (830212074) is greater than itself. Its abundance is 163219032

Bases of 666993042

• Binary: 100111110000011000000110010010₂
• Hexadecimal: 0x27C18192
• Base-36: B13Z4I

Squares and roots of 666993042

• 666993042 squared (666993042²) is 444879718076413764
• 666993042 cubed (666993042³) is 296731676483889604901030088
• The square root of 666993042 is 25826.2084325207
• The cube root of 666993042 is 873.7229990367

Scales and comparisons

• 666,993,042 seconds is equal to 21 years, 10 weeks, 5 days, 19 hours, 50 minutes, 42 seconds.
• To count from 1 to 666,993,042 would take you about thirty-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 666993042 cubic inches would be around 72.8 feet tall.

Recreational maths with 666993042

• 666993042 backwards is 240399666
• The number of decimal digits it has is: 9
• The sum of 666993042's digits is 45
• More coming soon!