138400503872

Names of 138400503872

• Cardinal: 138400503872 can be written as One hundred thirty-eight billion, four hundred million, five hundred three thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.38400503872 × 10¹¹

Factors of 138400503872

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 168

Divisors of 138400503872

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 8 16 29 32 58 64 116 137 232 274 464 548 841 928 1096 1682 1856 2192 3364 3973 4384 6728 7946 8768 13456 15892 18769 26912 31784 37538 53824 63568 75076 115217 127136 150152 230434 254272 300304 460868 544301 600608 921736 1088602 1201216 1843472 2177204 2571353 3686944 4354408 5142706 7373888 8708816 10285412 15784729 17417632 20570824 31569458 34835264 41141648 63138916 74569237 82283296 126277832 149138474 164566592 252555664 298276948 505111328 596553896 1010222656 1193107792 2162507873 2386215584 4325015746 4772431168 8650031492 17300062984 34600125968 69200251936 138400503872
• Sum of all divisors σ(n): 286526790420
• Sum of proper divisors (its aliquot sum) s(n): 148126286548
• 138400503872 is an abundant number, because the sum of its proper divisors (148126286548) is greater than itself. Its abundance is 9725782676

Bases of 138400503872

• Binary: 10000000111001010100000001100001000000₂
• Hexadecimal: 0x2039501840
• Base-36: 1RKW348W

Squares and roots of 138400503872

• 138400503872 squared (138400503872²) is 19154699472023486992384
• 138400503872 cubed (138400503872³) is 2651020058444782967164383426510848
• The square root of 138400503872 is 372022.1819623125
• The cube root of 138400503872 is 5172.6436112109

Scales and comparisons

• 138,400,503,872 seconds is equal to 4,400 years, 36 weeks, 5 days, 16 hours, 24 minutes, 32 seconds.
• To count from 1 to 138,400,503,872 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 138400503872 cubic inches would be around 431.1 feet tall.

Recreational maths with 138400503872

• 138400503872 backwards is 278305004831
• The number of decimal digits it has is: 12
• The sum of 138400503872's digits is 41
• More coming soon!