138518988943767679

Names of 138518988943767679

• Cardinal: 138518988943767679 can be written as One hundred thirty-eight quadrillion, five hundred eighteen trillion, nine hundred eighty-eight billion, nine hundred forty-three million, seven hundred sixty-seven thousand, six hundred seventy-nine.

Scientific notation

• Scientific notation: 1.38518988943767679 × 10¹⁷

Factors of 138518988943767679

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 877727000

Divisors of 138518988943767679

• Number of divisors d(n): 64
• Complete list of divisors:
  1 13 37 59 67 83 481 767 871 1079 2183 2479 3071 3953 4897 5561 28379 32227 39923 51389 63661 72293 146261 181189 205757 328099 1901393 2355457 2674841 4265287 12139663 157815619 877726741 11410447633 32475889417 51785877719 58807691647 72851319503 422186562421 673216410347 764499991411 947067153539 1916077475603 2175884590939 2695498821611 3469653807173 4298227850677 4881038406701 24909007182839 28286499682207 35041484680943 45105499493249 55876962058801 63453499287113 128377190865401 159034430475049 180598421047937 287981265995359 1668903481250213 2067447596175637 2347779473623181 3743756457939667 10655306841828283 138518988943767679
• Sum of all divisors σ(n): 160033318797703680
• Sum of proper divisors (its aliquot sum) s(n): 21514329853936001
• 138518988943767679 is a deficient number, because the sum of its proper divisors (21514329853936001) is less than itself. Its deficiency is 117004659089831678

Bases of 138518988943767679

• Binary: 111101100000111100100100101011010101000111011100001111111₂
• Hexadecimal: 0x1EC1E495AA3B87F
• Base-36: 11VWVT16T4ZJ

Squares and roots of 138518988943767679

• 138518988943767679 squared (138518988943767679²) is 19187510298003632495075135925047041
• 138518988943767679 cubed (138518988943767679³) is 2657834526827593653277209385745999934305671850387839
• The square root of 138518988943767679 is 372181392.5275787871
• The cube root of 138518988943767679 is 517411.9295232107

Scales and comparisons

• 138,518,988,943,767,679 seconds is equal to 4,404,475,381 years, 2 weeks, 3 days, 21 minutes, 19 seconds.
• To count from 1 to 138,518,988,943,767,679 would take you about thirteen billion, two hundred thirteen million, four hundred twenty-six thousand, one hundred forty-three 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 138518988943767679 cubic inches would be around 43117.7 feet tall.

Recreational maths with 138518988943767679

• 138518988943767679 backwards is 976767349889815831
• The number of decimal digits it has is: 18
• The sum of 138518988943767679's digits is 109
• More coming soon!