2138305923

Names of 2138305923

• Cardinal: 2138305923 can be written as Two billion, one hundred thirty-eight million, three hundred five thousand, nine hundred twenty-three.

Scientific notation

• Scientific notation: 2.138305923 × 10⁹

Factors of 2138305923

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 914

Divisors of 2138305923

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 13 19 29 39 41 57 87 117 123 171 247 261 369 377 533 551 741 779 809 1131 1189 1599 1653 2223 2337 2427 3393 3567 4797 4959 7011 7163 7281 10127 10517 10701 15371 15457 21489 22591 23461 30381 31551 33169 46113 46371 64467 67773 70383 91143 94653 99507 138339 139113 199823 203319 211149 293683 298521 304993 431197 445759 599469 630211 881049 914979 961901 1293591 1337277 1798407 1890633 2643147 2744937 2885703 3880773 4011831 5671899 5794867 8192743 8657109 12504713 17384601 18276119 24578229 37514139 52153803 54828357 73734687 112542417 164485071 237589547 712768641 2138305923
• Sum of all divisors σ(n): 3714984000
• Sum of proper divisors (its aliquot sum) s(n): 1576678077
• 2138305923 is a deficient number, because the sum of its proper divisors (1576678077) is less than itself. Its deficiency is 561627846

Bases of 2138305923

• Binary: 1111111011100111111010110000011₂
• Hexadecimal: 0x7F73F583
• Base-36: ZD3BER

Squares and roots of 2138305923

• 2138305923 squared (2138305923²) is 4572352220336881929
• 2138305923 cubed (2138305923³) is 9777087834788555684132365467
• The square root of 2138305923 is 46241.8200658235
• The cube root of 2138305923 is 1288.3186080479

Scales and comparisons

• 2,138,305,923 seconds is equal to 67 years, 51 weeks, 3 days, 21 hours, 52 minutes, 3 seconds.
• To count from 1 to 2,138,305,923 would take you about one hundred thirty-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 2138305923 cubic inches would be around 107.4 feet tall.

Recreational maths with 2138305923

• 2138305923 backwards is 3295038312
• The number of decimal digits it has is: 10
• The sum of 2138305923's digits is 36
• More coming soon!