138406819616

Names of 138406819616

• Cardinal: 138406819616 can be written as One hundred thirty-eight billion, four hundred six million, eight hundred nineteen thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 1.38406819616 × 10¹¹

Factors of 138406819616

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 419633

Divisors of 138406819616

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 61 104 122 169 208 244 338 416 488 676 793 976 1352 1586 1952 2704 3172 5408 6344 10309 12688 20618 25376 41236 82472 164944 329888 419557 839114 1678228 3356456 5454241 6712912 10908482 13425824 21816964 25592977 43633928 51185954 70905133 87267856 102371908 141810266 174535712 204743816 283620532 332708701 409487632 567241064 665417402 818975264 1134482128 1330834804 2268964256 2661669608 4325213113 5323339216 8650426226 10646678432 17300852452 34601704904 69203409808 138406819616
• Sum of all divisors σ(n): 299899219284
• Sum of proper divisors (its aliquot sum) s(n): 161492399668
• 138406819616 is an abundant number, because the sum of its proper divisors (161492399668) is greater than itself. Its abundance is 23085580052

Bases of 138406819616

• Binary: 10000000111001101100000111011100100000₂
• Hexadecimal: 0x2039B07720
• Base-36: 1RKZUHI8

Squares and roots of 138406819616

• 138406819616 squared (138406819616²) is 19156447716215962387456
• 138406819616 cubed (138406819616³) is 2651383003541637864260463293136896
• The square root of 138406819616 is 372030.6702625471
• The cube root of 138406819616 is 5172.7222925139

Scales and comparisons

• 138,406,819,616 seconds is equal to 4,400 years, 47 weeks, 1 day, 18 hours, 46 minutes, 56 seconds.
• To count from 1 to 138,406,819,616 would take you about eight thousand, eight hundred one 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 138406819616 cubic inches would be around 431.1 feet tall.

Recreational maths with 138406819616

• 138406819616 backwards is 616918604831
• The number of decimal digits it has is: 12
• The sum of 138406819616's digits is 53
• More coming soon!