21357808376990175

Names of 21357808376990175

• Cardinal: 21357808376990175 can be written as Twenty-one quadrillion, three hundred fifty-seven trillion, eight hundred eight billion, three hundred seventy-six million, nine hundred ninety thousand, one hundred seventy-five.

Scientific notation

• Scientific notation: 2.1357808376990175 × 10¹⁶

Factors of 21357808376990175

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1665326189266

Divisors of 21357808376990175

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 5 9 15 19 25 27 45 57 75 95 135 171 225 285 475 513 675 855 1425 2565 4275 12825 1665326189239 4995978567717 8326630946195 14987935703151 24979892838585 31641197595541 41633154730975 44963807109453 74939678515755 94923592786623 124899464192925 158205987977705 224819035547265 284770778359869 374698392578775 474617963933115 791029939888525 854312335079607 1124095177736325 1423853891799345 2373089819665575 4271561675398035 7119269458996725 21357808376990175
• Sum of all divisors σ(n): 41300089493152000
• Sum of proper divisors (its aliquot sum) s(n): 19942281116161825
• 21357808376990175 is a deficient number, because the sum of its proper divisors (19942281116161825) is less than itself. Its deficiency is 1415527260828350

Bases of 21357808376990175

• Binary: 1001011111000001101000001000101011111011100100111011111₂
• Hexadecimal: 0x4BE0D0457DC9DF
• Base-36: 5UAPLPTE09R

Squares and roots of 21357808376990175

• 21357808376990175 squared (21357808376990175²) is 456155978668231693194392046530625
• 21357808376990175 cubed (21357808376990175³) is 9742491982414510428193664964428321510188461609375
• The square root of 21357808376990175 is 146143109.2354004045
• The cube root of 21357808376990175 is 277450.5320019037

Scales and comparisons

• 21,357,808,376,990,175 seconds is equal to 679,112,242 years, 18 weeks, 1 day, 3 hours, 56 minutes, 15 seconds.
• To count from 1 to 21,357,808,376,990,175 would take you about two billion, thirty-seven million, three hundred thirty-six thousand, seven hundred twenty-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 21357808376990175 cubic inches would be around 23120.9 feet tall.

Recreational maths with 21357808376990175

• 21357808376990175 backwards is 57109967380875312
• The number of decimal digits it has is: 17
• The sum of 21357808376990175's digits is 81
• More coming soon!