421888147821

Names of 421888147821

• Cardinal: 421888147821 can be written as Four hundred twenty-one billion, eight hundred eighty-eight million, one hundred forty-seven thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 4.21888147821 × 10¹¹

Factors of 421888147821

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6844

Divisors of 421888147821

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 19 21 31 57 63 93 133 171 217 279 399 589 651 1197 1767 1953 3023 3761 4123 5301 9069 11283 12369 21161 26327 27207 33849 37107 57437 63483 71459 78981 93713 116591 172311 190449 214377 236943 281139 349773 402059 500213 516933 643131 655991 816137 843417 1049319 1206177 1500639 1780547 1967973 2215229 2448411 3618531 4501917 5341641 5903919 6645687 7345233 11369503 12463829 15506603 16024923 19937061 34108509 37391487 46519809 79586521 102325527 112174461 139559427 216020557 238759563 352454593 648061671 716278689 1057363779 1512143899 1944185013 2467182151 3172091337 4536431697 6696637267 7401546453 13609295091 20089911801 22204639359 46876460869 60269735403 140629382607 421888147821
• Sum of all divisors σ(n): 757205729280
• Sum of proper divisors (its aliquot sum) s(n): 335317581459
• 421888147821 is a deficient number, because the sum of its proper divisors (335317581459) is less than itself. Its deficiency is 86570566362

Bases of 421888147821

• Binary: 110001000111010011111100100000101101101₂
• Hexadecimal: 0x623A7E416D
• Base-36: 5DT9B699

Squares and roots of 421888147821

• 421888147821 squared (421888147821²) is 177989609271833947048041
• 421888147821 cubed (421888147821³) is 75091706587077512423969807996468661
• The square root of 421888147821 is 649529.1739567977
• The cube root of 421888147821 is 7500.0779122039

Scales and comparisons

• 421,888,147,821 seconds is equal to 13,414 years, 38 weeks, 2 days, 16 hours, 10 minutes, 21 seconds.
• To count from 1 to 421,888,147,821 would take you about twenty-six thousand, eight hundred twenty-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 421888147821 cubic inches would be around 625 feet tall.

Recreational maths with 421888147821

• 421888147821 backwards is 128741888124
• The number of decimal digits it has is: 12
• The sum of 421888147821's digits is 54
• More coming soon!