138303994191

Names of 138303994191

• Cardinal: 138303994191 can be written as One hundred thirty-eight billion, three hundred three million, nine hundred ninety-four thousand, one hundred ninety-one.

Scientific notation

• Scientific notation: 1.38303994191 × 10¹¹

Factors of 138303994191

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 7448

Divisors of 138303994191

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 11 19 33 41 57 123 209 451 627 779 821 1353 2337 2463 6553 8569 9031 15599 19659 25707 27093 33661 46797 72083 100983 124507 171589 216249 268673 370271 373521 514767 639559 806019 1110813 1369577 1918677 2955403 4108731 5104787 5380013 7035149 8866209 15314361 16140039 21105447 56152657 59180143 102220247 168457971 177540429 220580533 306660741 661741599 1124422717 2426385863 3373268151 4191030127 7279157589 12573090381 46101331397 138303994191
• Sum of all divisors σ(n): 217219484160
• Sum of proper divisors (its aliquot sum) s(n): 78915489969
• 138303994191 is a deficient number, because the sum of its proper divisors (78915489969) is less than itself. Its deficiency is 59388504222

Bases of 138303994191

• Binary: 10000000110011100011110111100101001111₂
• Hexadecimal: 0x20338F794F
• Base-36: 1RJAMKWF

Squares and roots of 138303994191

• 138303994191 squared (138303994191²) is 19127994809184161744481
• 138303994191 cubed (138303994191³) is 2645478082974884459357904650309871
• The square root of 138303994191 is 371892.4497633691
• The cube root of 138303994191 is 5171.4409993405

Scales and comparisons

• 138,303,994,191 seconds is equal to 4,397 years, 33 weeks, 1 day, 16 hours, 9 minutes, 51 seconds.
• To count from 1 to 138,303,994,191 would take you about eight thousand, seven hundred ninety-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 138303994191 cubic inches would be around 431 feet tall.

Recreational maths with 138303994191

• 138303994191 backwards is 191499303831
• The number of decimal digits it has is: 12
• The sum of 138303994191's digits is 51
• More coming soon!