2668299138

Names of 2668299138

• Cardinal: 2668299138 can be written as Two billion, six hundred sixty-eight million, two hundred ninety-nine thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 2.668299138 × 10⁹

Factors of 2668299138

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 30358

Divisors of 2668299138

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 9 18 23 27 46 54 69 71 138 142 207 213 414 426 621 639 1242 1278 1633 1917 3266 3834 4899 9798 14697 29394 30259 44091 60518 88182 90777 181554 272331 544662 695957 816993 1391914 1633986 2087871 2148389 4175742 4296778 6263613 6445167 12527226 12890334 18790839 19335501 37581678 38671002 49412947 58006503 98825894 116013006 148238841 296477682 444716523 889433046 1334149569 2668299138
• Sum of all divisors σ(n): 6274713600
• Sum of proper divisors (its aliquot sum) s(n): 3606414462
• 2668299138 is an abundant number, because the sum of its proper divisors (3606414462) is greater than itself. Its abundance is 938115324

Bases of 2668299138

• Binary: 10011111000010110000001110000010₂
• Hexadecimal: 0x9F0B0382
• Base-36: 184MWSI

Squares and roots of 2668299138

• 2668299138 squared (2668299138²) is 7119820289851543044
• 2668299138 cubed (2668299138³) is 18997810342125782452275096072
• The square root of 2668299138 is 51655.5818668225
• The cube root of 2668299138 is 1387.0054640787

Scales and comparisons

• 2,668,299,138 seconds is equal to 84 years, 43 weeks, 6 days, 2 hours, 12 minutes, 18 seconds.
• To count from 1 to 2,668,299,138 would take you about one hundred sixty-nine 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 2668299138 cubic inches would be around 115.6 feet tall.

Recreational maths with 2668299138

• 2668299138 backwards is 8319928662
• 2668299138 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2668299138's digits is 54
• More coming soon!