138745773128

Names of 138745773128

• Cardinal: 138745773128 can be written as One hundred thirty-eight billion, seven hundred forty-five million, seven hundred seventy-three thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.38745773128 × 10¹¹

Factors of 138745773128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 10010

Divisors of 138745773128

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 19 38 53 76 106 152 212 424 1007 2014 2237 4028 4474 7699 8056 8948 15398 17896 30796 42503 61592 85006 118561 146281 170012 237122 292562 340024 408047 474244 585124 816094 948488 1170248 1632188 2252659 3264376 4505318 7752893 9010636 15505786 17222663 18021272 31011572 34445326 62023144 68890652 137781304 327230597 654461194 912801139 1308922388 1825602278 2617844776 3651204556 7302409112 17343221641 34686443282 69372886564 138745773128
• Sum of all divisors σ(n): 279168120000
• Sum of proper divisors (its aliquot sum) s(n): 140422346872
• 138745773128 is an abundant number, because the sum of its proper divisors (140422346872) is greater than itself. Its abundance is 1676573744

Bases of 138745773128

• Binary: 10000001001101111001000111110001001000₂
• Hexadecimal: 0x204DE47C48
• Base-36: 1RQLNFPK

Squares and roots of 138745773128

• 138745773128 squared (138745773128²) is 19250389560886446904384
• 138745773128 cubed (138745773128³) is 2670910182640370504765680372593152
• The square root of 138745773128 is 372485.9368190965
• The cube root of 138745773128 is 5176.9414561591

Scales and comparisons

• 138,745,773,128 seconds is equal to 4,411 years, 35 weeks, 4 days, 20 hours, 32 minutes, 8 seconds.
• To count from 1 to 138,745,773,128 would take you about eight thousand, eight hundred twenty-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 138745773128 cubic inches would be around 431.4 feet tall.

Recreational maths with 138745773128

• 138745773128 backwards is 821377547831
• The number of decimal digits it has is: 12
• The sum of 138745773128's digits is 56
• More coming soon!