138537017521520

Names of 138537017521520

• Cardinal: 138537017521520 can be written as One hundred thirty-eight trillion, five hundred thirty-seven billion, seventeen million, five hundred twenty-one thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.3853701752152 × 10¹⁴

Factors of 138537017521520

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6437594027

Divisors of 138537017521520

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 80 269 538 1076 1345 2152 2690 4304 5380 10760 21520 6437593751 12875187502 25750375004 32187968755 51500750008 64375937510 103001500016 128751875020 257503750040 515007500080 1731712719019 3463425438038 6926850876076 8658563595095 13853701752152 17317127190190 27707403504304 34634254380380 69268508760760 138537017521520
• Sum of all divisors σ(n): 323295958225440
• Sum of proper divisors (its aliquot sum) s(n): 184758940703920
• 138537017521520 is an abundant number, because the sum of its proper divisors (184758940703920) is greater than itself. Its abundance is 46221923182400

Bases of 138537017521520

• Binary: 11111011111111110101001101101111011010101110000₂
• Hexadecimal: 0x7DFFA9B7B570
• Base-36: 1D3V0ZB90W

Squares and roots of 138537017521520

• 138537017521520 squared (138537017521520²) is 19192505223757939483663110400
• 138537017521520 cubed (138537017521520³) is 2658872432465617790427448147277662135808000
• The square root of 138537017521520 is 11770174.9146527131
• The cube root of 138537017521520 is 51743.4376016181

Scales and comparisons

• 138,537,017,521,520 seconds is equal to 4,405,048 years, 32 weeks, 6 days, 19 hours, 5 minutes, 20 seconds.
• To count from 1 to 138,537,017,521,520 would take you about eleven million, twelve thousand, six hundred twenty-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 138537017521520 cubic inches would be around 4312 feet tall.

Recreational maths with 138537017521520

• 138537017521520 backwards is 025125710735831
• The number of decimal digits it has is: 15
• The sum of 138537017521520's digits is 50
• More coming soon!