381021439518721

Names of 381021439518721

• Cardinal: 381021439518721 can be written as Three hundred eighty-one trillion, twenty-one billion, four hundred thirty-nine million, five hundred eighteen thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 3.81021439518721 × 10¹⁴

Factors of 381021439518721

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 24709

Divisors of 381021439518721

• Number of divisors d(n): 32
• Complete list of divisors:
  1 71 109 919 2543 7739 21067 65249 100171 180553 277187 1495757 2296303 2337017 7112141 19360573 19680277 53573381 163037513 165928207 254734853 1374600683 2110302457 3803710051 5839498529 18086174563 49233937139 149831474447 414604395559 3495609536869 5366499148151 381021439518721
• Sum of all divisors σ(n): 390529122508800
• Sum of proper divisors (its aliquot sum) s(n): 9507682990079
• 381021439518721 is a deficient number, because the sum of its proper divisors (9507682990079) is less than itself. Its deficiency is 371513756528642

Bases of 381021439518721

• Binary: 1010110101000100101110111100011011110100000000001₂
• Hexadecimal: 0x15A89778DE801
• Base-36: 3R26TZEO01

Squares and roots of 381021439518721

• 381021439518721 squared (381021439518721²) is 145177337372918364988109475841
• 381021439518721 cubed (381021439518721³) is 55315678071324368676714277579470690616719361
• The square root of 381021439518721 is 19519770.4781260427
• The cube root of 381021439518721 is 72496.4050230885

Scales and comparisons

• 381,021,439,518,721 seconds is equal to 12,115,303 years, 10 weeks, 2 days, 19 hours, 12 minutes, 1 second.
• To count from 1 to 381,021,439,518,721 would take you about thirty million, two hundred eighty-eight thousand, two hundred fifty-eight 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 381021439518721 cubic inches would be around 6041.4 feet tall.

Recreational maths with 381021439518721

• 381021439518721 backwards is 127815934120183
• The number of decimal digits it has is: 15
• The sum of 381021439518721's digits is 55
• More coming soon!