1821401995906014921

Names of 1821401995906014921

• Cardinal: 1821401995906014921 can be written as One quintillion, eight hundred twenty-one quadrillion, four hundred one trillion, nine hundred ninety-five billion, nine hundred six million, fourteen thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 1.821401995906014921 × 10¹⁸

Factors of 1821401995906014921

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 10186931802

Divisors of 1821401995906014921

• Number of divisors d(n): 24
• Complete list of divisors:
  1 3 7 9 21 63 2838853 8516559 19871971 25549677 59615913 178847739 10184092939 30552278817 71288650573 91656836451 213865951719 641597855157 28911142792158967 86733428376476901 202377999545112769 260200285129430703 607133998635338307 1821401995906014921
• Sum of all divisors σ(n): 3006759909825439040
• Sum of proper divisors (its aliquot sum) s(n): 1185357913919424119
• 1821401995906014921 is a deficient number, because the sum of its proper divisors (1185357913919424119) is less than itself. Its deficiency is 636044081986590802

Bases of 1821401995906014921

• Binary: 1100101000110111010110111011100001111001010100101111011001001₂
• Hexadecimal: 0x1946EB770F2A5EC9
• Base-36: DU694DL0IEO9

Squares and roots of 1821401995906014921

• 1821401995906014921 squared (1821401995906014921²) is 3317505230690414795039197827074636241
• 1821401995906014921 cubed (1821401995906014921³) is 6042510648608165974562973961418077474457099009993351961
• The square root of 1821401995906014921 is 1349593270.5470989125
• The cube root of 1821401995906014921 is 1221242.5743483807

Scales and comparisons

• 1,821,401,995,906,014,921 seconds is equal to 57,914,949,503 years, 27 weeks, 1 day, 13 hours, 55 minutes, 21 seconds.
• To count from 1 to 1,821,401,995,906,014,921 would take you about two hundred two billion, seven hundred two million, three hundred twenty-three thousand, two hundred sixty-two 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 1821401995906014921 cubic inches would be around 101770.2 feet tall.

Recreational maths with 1821401995906014921

• 1821401995906014921 backwards is 1294106095991041281
• The number of decimal digits it has is: 19
• The sum of 1821401995906014921's digits is 72
• More coming soon!