138728103759

Names of 138728103759

• Cardinal: 138728103759 can be written as One hundred thirty-eight billion, seven hundred twenty-eight million, one hundred three thousand, seven hundred fifty-nine.

Scientific notation

• Scientific notation: 1.38728103759 × 10¹¹

Factors of 138728103759

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1020

Divisors of 138728103759

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 7 9 21 27 49 63 73 81 147 189 219 343 441 511 567 657 937 1029 1323 1533 1971 2811 3087 3577 3969 4599 5329 5913 6559 8433 9261 10731 13797 15987 19677 25039 25299 27783 32193 37303 41391 45913 47961 59031 68401 75117 75897 96579 111909 137739 143883 177093 205203 225351 261121 289737 321391 335727 413217 431649 478807 531279 615609 676053 783363 964173 1007181 1239651 1436421 1827847 1846827 2028159 2350089 2892519 3021543 3351649 3718953 4309263 4993273 5483541 5540481 7050267 8677557 10054947 12927789 14979819 16450623 21150801 23461543 26032671 30164841 34952911 38783367 44939457 49351869 70384629 90494523 104858733 134818371 148055607 211153887 244670377 271483569 314576199 404455113 633461661 734011131 943728597 1712692639 1900384983 2202033393 2831185791 5138077917 6606100179 15414233751 19818300537 46242701253 138728103759
• Sum of all divisors σ(n): 245291877600
• Sum of proper divisors (its aliquot sum) s(n): 106563773841
• 138728103759 is a deficient number, because the sum of its proper divisors (106563773841) is less than itself. Its deficiency is 32164329918

Bases of 138728103759

• Binary: 10000001001100110101101101111101001111₂
• Hexadecimal: 0x204CD6DF4F
• Base-36: 1RQB4PXR

Squares and roots of 138728103759

• 138728103759 squared (138728103759²) is 19245486772567869930081
• 138728103759 cubed (138728103759³) is 2669889885877257494529893043274479
• The square root of 138728103759 is 372462.2178946477
• The cube root of 138728103759 is 5176.7216844855

Scales and comparisons

• 138,728,103,759 seconds is equal to 4,411 years, 6 weeks, 3 days, 8 hours, 22 minutes, 39 seconds.
• To count from 1 to 138,728,103,759 would take you about eight thousand, eight hundred twenty-two 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 138728103759 cubic inches would be around 431.4 feet tall.

Recreational maths with 138728103759

• 138728103759 backwards is 957301827831
• The number of decimal digits it has is: 12
• The sum of 138728103759's digits is 54
• More coming soon!