138768442437209875562

Names of 138768442437209875562

• Cardinal: 138768442437209875562 can be written as One hundred thirty-eight quintillion, seven hundred sixty-eight quadrillion, four hundred forty-two trillion, four hundred thirty-seven billion, two hundred nine million, eight hundred seventy-five thousand, five hundred sixty-two.

Scientific notation

• Scientific notation: 1.38768442437209875562 × 10²⁰

Factors of 138768442437209875562

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 92647312985917

Divisors of 138768442437209875562

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 73 146 10259 20518 748907 1497814 92647312975583 185294625951166 6763253847217559 13526507694435118 950468783816505997 1900937567633011994 69384221218604937781 138768442437209875562
• Sum of all divisors σ(n): 211024637710747188480
• Sum of proper divisors (its aliquot sum) s(n): 72256195273537312918
• 138768442437209875562 is a deficient number, because the sum of its proper divisors (72256195273537312918) is less than itself. Its deficiency is 66512247163672562644

Bases of 138768442437209875562

• Binary: 1111000010111001100100010110010101110000000001000101110010001101010₂
• Hexadecimal: 0x785CC8B2B8022E46A
• Base-36: TAAPNE9VUJT62

Squares and roots of 138768442437209875562

• 138768442437209875562 squared (138768442437209875562²) is 19256680616449230708657704096939524815844
• 138768442437209875562 cubed (138768442437209875562³) is 2672219575655470253593931117252178711190556024822566206004328
• The square root of 138768442437209875562 is 11780001801.2396702503
• The cube root of 138768442437209875562 is 5177223.3897823413

Scales and comparisons

• 138,768,442,437,209,875,562 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,768,442,437,209,875,562 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 138768442437209875562 cubic inches would be around 431435.3 feet tall.

Recreational maths with 138768442437209875562

• 138768442437209875562 backwards is 265578902734244867831
• The number of decimal digits it has is: 21
• The sum of 138768442437209875562's digits is 101
• More coming soon!