21421257003

Names of 21421257003

• Cardinal: 21421257003 can be written as Twenty-one billion, four hundred twenty-one million, two hundred fifty-seven thousand and three.

Scientific notation

• Scientific notation: 2.1421257003 × 10¹⁰

Factors of 21421257003

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 273

Divisors of 21421257003

• Number of divisors d(n): 54
• Complete list of divisors:
  1 3 9 27 41 81 123 229 243 369 687 1107 1681 2061 3321 5043 6183 9389 9963 15129 18549 28167 45387 52441 55647 84501 136161 157323 253503 384949 408483 471969 760509 1154847 1415907 2150081 2281527 3464541 4247721 6450243 10393623 12743163 19350729 31180869 58052187 88153321 93542607 174156561 264459963 522469683 793379889 2380139667 7140419001 21421257003
• Sum of all divisors σ(n): 33033776412
• Sum of proper divisors (its aliquot sum) s(n): 11612519409
• 21421257003 is a deficient number, because the sum of its proper divisors (11612519409) is less than itself. Its deficiency is 9808737594

Bases of 21421257003

• Binary: 10011111100110011100111000100101011₂
• Hexadecimal: 0x4FCCE712B
• Base-36: 9U9NVOR

Squares and roots of 21421257003

• 21421257003 squared (21421257003²) is 458870251588576542009
• 21421257003 cubed (21421257003³) is 9829577590310167125311814939027
• The square root of 21421257003 is 146360.0252903777
• The cube root of 21421257003 is 2777.2500541307

Scales and comparisons

• 21,421,257,003 seconds is equal to 681 years, 6 weeks, 5 days, 5 hours, 10 minutes, 3 seconds.
• To count from 1 to 21,421,257,003 would take you about one thousand, three 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 21421257003 cubic inches would be around 231.4 feet tall.

Recreational maths with 21421257003

• 21421257003 backwards is 30075212412
• 21421257003 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21421257003's digits is 27
• More coming soon!