138937665783

Names of 138937665783

• Cardinal: 138937665783 can be written as One hundred thirty-eight billion, nine hundred thirty-seven million, six hundred sixty-five thousand, seven hundred eighty-three.

Scientific notation

• Scientific notation: 1.38937665783 × 10¹¹

Factors of 138937665783

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 933

Divisors of 138937665783

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 7 21 49 147 179 197 343 537 547 591 1029 1253 1379 1641 2401 3759 3829 4137 7203 8771 9653 11487 26313 26803 28959 35263 61397 67571 80409 97913 105789 107759 184191 187621 202713 246841 293739 323277 429779 472997 562863 685391 740523 754313 1289337 1313347 1418991 1727887 2056173 2262939 3940041 4797737 5183661 5280191 12095209 14393211 15840573 19288861 33584159 36285627 36961337 57866583 84666463 100752477 110884011 135022027 235089113 253999389 258729359 405066081 705267339 776188077 945154189 2835462567 6616079323 19848237969 46312555261 138937665783
• Sum of all divisors σ(n): 218822186880
• Sum of proper divisors (its aliquot sum) s(n): 79884521097
• 138937665783 is a deficient number, because the sum of its proper divisors (79884521097) is less than itself. Its deficiency is 59053144686

Bases of 138937665783

• Binary: 10000001011001010101001000100011110111₂
• Hexadecimal: 0x20595488F7
• Base-36: 1RTRWD13

Squares and roots of 138937665783

• 138937665783 squared (138937665783²) is 19303674973228609003089
• 138937665783 cubed (138937665783³) is 2682007541814097950125164296603687
• The square root of 138937665783 is 372743.4315759299
• The cube root of 138937665783 is 5179.3270169043

Scales and comparisons

• 138,937,665,783 seconds is equal to 4,417 years, 40 weeks, 6 days, 20 hours, 3 minutes, 3 seconds.
• To count from 1 to 138,937,665,783 would take you about eight thousand, eight 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 138937665783 cubic inches would be around 431.6 feet tall.

Recreational maths with 138937665783

• 138937665783 backwards is 387566739831
• The number of decimal digits it has is: 12
• The sum of 138937665783's digits is 66
• More coming soon!