155383640538127640

Names of 155383640538127640

• Cardinal: 155383640538127640 can be written as One hundred fifty-five quadrillion, three hundred eighty-three trillion, six hundred forty billion, five hundred thirty-eight million, one hundred twenty-seven thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.5538364053812764 × 10¹⁷

Factors of 155383640538127640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 65840525651815

Divisors of 155383640538127640

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 4 5 8 10 20 40 59 118 236 295 472 590 1180 2360 65840525651749 131681051303498 263362102606996 329202628258745 526724205213992 658405256517490 1316810513034980 2633621026069960 3884591013453191 7769182026906382 15538364053812764 19422955067265955 31076728107625528 38845910134531910 77691820269063820 155383640538127640
• Sum of all divisors σ(n): 355538838519450000
• Sum of proper divisors (its aliquot sum) s(n): 200155197981322360
• 155383640538127640 is an abundant number, because the sum of its proper divisors (200155197981322360) is greater than itself. Its abundance is 44771557443194720

Bases of 155383640538127640

• Binary: 1000101000000010001001100100001010001011101001110100011000₂
• Hexadecimal: 0x22808990A2E9D18
• Base-36: 16HYWJ0POV88

Squares and roots of 155383640538127640

• 155383640538127640 squared (155383640538127640²) is 24144075746882063265200556931969600
• 155383640538127640 cubed (155383640538127640³) is 3751594386978848142508029929349738645830441399744000
• The square root of 155383640538127640 is 394187316.5617174447
• The cube root of 155383640538127640 is 537611.3523479243

Scales and comparisons

• 155,383,640,538,127,640 seconds is equal to 4,940,719,135 years, 49 weeks, 4 days, 14 hours, 7 minutes, 20 seconds.
• To count from 1 to 155,383,640,538,127,640 would take you about fourteen billion, eight hundred twenty-two million, one hundred fifty-seven thousand, four hundred seven 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 155383640538127640 cubic inches would be around 44800.9 feet tall.

Recreational maths with 155383640538127640

• 155383640538127640 backwards is 046721835046383551
• The number of decimal digits it has is: 18
• The sum of 155383640538127640's digits is 71
• More coming soon!