138120416686

Names of 138120416686

• Cardinal: 138120416686 can be written as One hundred thirty-eight billion, one hundred twenty million, four hundred sixteen thousand, six hundred eighty-six.

Scientific notation

• Scientific notation: 1.38120416686 × 10¹¹

Factors of 138120416686

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1318

Divisors of 138120416686

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 7 14 49 61 98 122 427 521 727 854 1042 1454 2989 3647 3721 5089 5978 7294 7442 10178 25529 26047 31781 35623 44347 51058 52094 63562 71246 88694 182329 222467 310429 364658 378767 444934 620858 757534 1557269 1938641 2173003 2651369 2705167 3114538 3877282 4346006 5302738 5410334 13570487 18559583 18936169 23104787 27140974 37119166 37872338 46209574 94993409 132553183 161733509 189986818 265106366 323467018 1132134563 1409392007 2264269126 2818784014 9865744049 19731488098 69060208343 138120416686
• Sum of all divisors σ(n): 245829690288
• Sum of proper divisors (its aliquot sum) s(n): 107709273602
• 138120416686 is a deficient number, because the sum of its proper divisors (107709273602) is less than itself. Its deficiency is 30411143084

Bases of 138120416686

• Binary: 10000000101000100111100100110110101110₂
• Hexadecimal: 0x20289E4DAE
• Base-36: 1RG9BVLA

Squares and roots of 138120416686

• 138120416686 squared (138120416686²) is 19077249505514267222596
• 138120416686 cubed (138120416686³) is 2634957650924418043502911434636856
• The square root of 138120416686 is 371645.5524905417
• The cube root of 138120416686 is 5169.1518859151

Scales and comparisons

• 138,120,416,686 seconds is equal to 4,391 years, 41 weeks, 4 days, 22 hours, 24 minutes, 46 seconds.
• To count from 1 to 138,120,416,686 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 138120416686 cubic inches would be around 430.8 feet tall.

Recreational maths with 138120416686

• 138120416686 backwards is 686614021831
• The number of decimal digits it has is: 12
• The sum of 138120416686's digits is 46
• More coming soon!