138404309897

Names of 138404309897

• Cardinal: 138404309897 can be written as One hundred thirty-eight billion, four hundred four million, three hundred nine thousand, eight hundred ninety-seven.

Scientific notation

• Scientific notation: 1.38404309897 × 10¹¹

Factors of 138404309897

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 10683

Divisors of 138404309897

• Number of divisors d(n): 48
• Complete list of divisors:
  1 7 19 47 49 133 307 329 893 931 2149 2303 5833 6251 10303 14429 15043 40831 43757 72121 101003 195757 274151 285817 484241 504847 707021 1370299 1919057 3163021 3389687 9200579 9592093 13433399 22141147 23727809 60097399 64404053 148661987 154988029 420681793 450828371 1040633909 2824577753 2944772551 7284437363 19772044271 138404309897
• Sum of all divisors σ(n): 173661143040
• Sum of proper divisors (its aliquot sum) s(n): 35256833143
• 138404309897 is a deficient number, because the sum of its proper divisors (35256833143) is less than itself. Its deficiency is 103147476754

Bases of 138404309897

• Binary: 10000000111001100010100010101110001001₂
• Hexadecimal: 0x20398A2B89
• Base-36: 1RKYCOZT

Squares and roots of 138404309897

• 138404309897 squared (138404309897²) is 19155752998064812150609
• 138404309897 cubed (138404309897³) is 2651238774254549102183979073277273
• The square root of 138404309897 is 372027.2972471241
• The cube root of 138404309897 is 5172.6910268149

Scales and comparisons

• 138,404,309,897 seconds is equal to 4,400 years, 43 weeks, 17 hours, 38 minutes, 17 seconds.
• To count from 1 to 138,404,309,897 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 138404309897 cubic inches would be around 431.1 feet tall.

Recreational maths with 138404309897

• 138404309897 backwards is 798903404831
• The number of decimal digits it has is: 12
• The sum of 138404309897's digits is 56
• More coming soon!