138162371778

Names of 138162371778

• Cardinal: 138162371778 can be written as One hundred thirty-eight billion, one hundred sixty-two million, three hundred seventy-one thousand, seven hundred seventy-eight.

Scientific notation

• Scientific notation: 1.38162371778 × 10¹¹

Factors of 138162371778

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1193

Divisors of 138162371778

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 3 6 9 18 79 158 237 474 711 1109 1422 2218 3327 6241 6654 9981 12482 18723 19962 37446 56169 87611 112338 175222 262833 525666 788499 1229881 1576998 2459762 3689643 6921269 7379286 11068929 13842538 20763807 22137858 41527614 62291421 97160599 124582842 194321198 291481797 582963594 874445391 1748890782 7675687321 15351374642 23027061963 46054123926 69081185889 138162371778
• Sum of all divisors σ(n): 303462670329
• Sum of proper divisors (its aliquot sum) s(n): 165300298551
• 138162371778 is an abundant number, because the sum of its proper divisors (165300298551) is greater than itself. Its abundance is 27137926773

Bases of 138162371778

• Binary: 10000000101011000111100111110011000010₂
• Hexadecimal: 0x202B1E7CC2
• Base-36: 1RGYB4CI

Squares and roots of 138162371778

• 138162371778 squared (138162371778²) is 19088840975322290881284
• 138162371778 cubed (138162371778³) is 2637359543643598476110619270002952
• The square root of 138162371778 is 371701.9932392077
• The cube root of 138162371778 is 5169.6752222257

Scales and comparisons

• 138,162,371,778 seconds is equal to 4,393 years, 7 weeks, 12 hours, 36 minutes, 18 seconds.
• To count from 1 to 138,162,371,778 would take you about eight thousand, seven hundred eighty-six 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 138162371778 cubic inches would be around 430.8 feet tall.

Recreational maths with 138162371778

• 138162371778 backwards is 877173261831
• The number of decimal digits it has is: 12
• The sum of 138162371778's digits is 54
• More coming soon!