138122499872

Names of 138122499872

• Cardinal: 138122499872 can be written as One hundred thirty-eight billion, one hundred twenty-two million, four hundred ninety-nine thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.38122499872 × 10¹¹

Factors of 138122499872

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 58031

Divisors of 138122499872

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 7 8 14 16 28 31 32 49 56 62 98 112 124 196 217 224 248 343 392 434 496 686 784 868 992 1372 1519 1568 1736 2401 2744 3038 3472 4802 5488 6076 6944 9604 10633 10976 12152 19208 21266 24304 38416 42532 48608 57991 74431 76832 85064 115982 148862 170128 231964 297724 340256 405937 463928 595448 811874 927856 1190896 1623748 1797721 1855712 2381792 2841559 3247496 3595442 5683118 6494992 7190884 11366236 12584047 12989984 14381768 19890913 22732472 25168094 28763536 39781826 45464944 50336188 57527072 79563652 88088329 90929888 100672376 139236391 159127304 176176658 201344752 278472782 318254608 352353316 402689504 556945564 616618303 636509216 704706632 1113891128 1233236606 1409413264 2227782256 2466473212 2818826528 4316328121 4455564512 4932946424 8632656242 9865892848 17265312484 19731785696 34530624968 69061249936 138122499872
• Sum of all divisors σ(n): 327470153472
• Sum of proper divisors (its aliquot sum) s(n): 189347653600
• 138122499872 is an abundant number, because the sum of its proper divisors (189347653600) is greater than itself. Its abundance is 51225153728

Bases of 138122499872

• Binary: 10000000101000101111100001011100100000₂
• Hexadecimal: 0x2028BE1720
• Base-36: 1RGAKIZK

Squares and roots of 138122499872

• 138122499872 squared (138122499872²) is 19077824970890640016384
• 138122499872 cubed (138122499872³) is 2635076877099880829388997117902848
• The square root of 138122499872 is 371648.3551315679
• The cube root of 138122499872 is 5169.1778735061

Scales and comparisons

• 138,122,499,872 seconds is equal to 4,391 years, 45 weeks, 1 day, 1 hour, 4 minutes, 32 seconds.
• To count from 1 to 138,122,499,872 would take you about eight thousand, seven hundred eighty-three 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 138122499872 cubic inches would be around 430.8 feet tall.

Recreational maths with 138122499872

• 138122499872 backwards is 278994221831
• 138122499872 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138122499872's digits is 56
• More coming soon!