401385891129555284721

Names of 401385891129555284721

• Cardinal: 401385891129555284721 can be written as Four hundred one quintillion, three hundred eighty-five quadrillion, eight hundred ninety-one trillion, one hundred twenty-nine billion, five hundred fifty-five million, two hundred eighty-four thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 4.01385891129555284721 × 10²⁰

Factors of 401385891129555284721

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 51773385322

Divisors of 401385891129555284721

• Number of divisors d(n): 24
• Complete list of divisors:
  1 3 9 547 1641 4923 1574849 4724547 14173641 861442403 2584327209 7752981627 51771809923 155315429769 465946289307 28319180027881 84957540083643 254872620250929 81532783085426627 244598349256279881 733795047768839643 44598432347728364969 133795297043185094907 401385891129555284721
• Sum of all divisors σ(n): 580839915534172413600
• Sum of proper divisors (its aliquot sum) s(n): 179454024404617128879
• 401385891129555284721 is a deficient number, because the sum of its proper divisors (179454024404617128879) is less than itself. Its deficiency is 221931866724938155842

Bases of 401385891129555284721

• Binary: 101011100001001011001001001010101100101000110110000011111001011110001₂
• Hexadecimal: 0x15C259255946C1F2F1
• Base-36: 2CPJI7GAPFJHM9

Squares and roots of 401385891129555284721

• 401385891129555284721 squared (401385891129555284721²) is 161110633597867207799779114621139376047841
• 401385891129555284721 cubed (401385891129555284721³) is 64667535237127198909748884250246811045797724320633328472337361
• The square root of 401385891129555284721 is 20034617319.2690477385
• The cube root of 401385891129555284721 is 7376562.6328093823

Scales and comparisons

• 401,385,891,129,555,284,721 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 401,385,891,129,555,284,721 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 401385891129555284721 cubic inches would be around 614713.6 feet tall.

Recreational maths with 401385891129555284721

• 401385891129555284721 backwards is 127482555921198583104
• The number of decimal digits it has is: 21
• The sum of 401385891129555284721's digits is 90
• More coming soon!