688385012139

Names of 688385012139

• Cardinal: 688385012139 can be written as Six hundred eighty-eight billion, three hundred eighty-five million, twelve thousand, one hundred thirty-nine.

Scientific notation

• Scientific notation: 6.88385012139 × 10¹¹

Factors of 688385012139

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 81273

Divisors of 688385012139

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 11 33 61 99 183 549 671 1429 2013 4287 6039 12861 15719 47157 79769 87169 141471 239307 261507 717921 784521 877459 958859 2632377 2876577 4865909 7897131 8629731 14597727 43793181 53524999 113989901 160574997 341969703 481724991 1025909109 1253888911 3761666733 6953383961 11285000199 20860151883 62580455649 76487223571 229461670713 688385012139
• Sum of all divisors σ(n): 1103295679200
• Sum of proper divisors (its aliquot sum) s(n): 414910667061
• 688385012139 is a deficient number, because the sum of its proper divisors (414910667061) is less than itself. Its deficiency is 273474345078

Bases of 688385012139

• Binary: 1010000001000110111100011011000110101011₂
• Hexadecimal: 0xA046F1B1AB
• Base-36: 8S8MNUSR

Squares and roots of 688385012139

• 688385012139 squared (688385012139²) is 473873924937611177355321
• 688385012139 cubed (688385012139³) is 326207707570533045141404728501241619
• The square root of 688385012139 is 829689.7083482475
• The cube root of 688385012139 is 8829.6563673081

Scales and comparisons

• 688,385,012,139 seconds is equal to 21,888 years, 26 weeks, 5 days, 2 hours, 55 minutes, 39 seconds.
• To count from 1 to 688,385,012,139 would take you about forty-three thousand, seven hundred seventy-seven 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 688385012139 cubic inches would be around 735.8 feet tall.

Recreational maths with 688385012139

• 688385012139 backwards is 931210583886
• The number of decimal digits it has is: 12
• The sum of 688385012139's digits is 54
• More coming soon!