42193921

Names of 42193921

• Cardinal: 42193921 can be written as Forty-two million, one hundred ninety-three thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 4.2193921 × 10⁷

Factors of 42193921

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 285

Divisors of 42193921

• Number of divisors d(n): 32
• Complete list of divisors:
  1 7 11 47 77 89 131 329 517 623 917 979 1441 3619 4183 6157 6853 10087 11659 29281 43099 46013 67727 81613 128249 322091 474089 547973 897743 3835811 6027703 42193921
• Sum of all divisors σ(n): 54743040
• Sum of proper divisors (its aliquot sum) s(n): 12549119
• 42193921 is a deficient number, because the sum of its proper divisors (12549119) is less than itself. Its deficiency is 29644802

Bases of 42193921

• Binary: 10100000111101010000000001₂
• Hexadecimal: 0x283D401
• Base-36: P4D1D

Squares and roots of 42193921

• 42193921 squared (42193921²) is 1780326969354241
• 42193921 cubed (42193921³) is 75118975499102265768961
• The square root of 42193921 is 6495.6847983875
• The cube root of 42193921 is 348.1368230425

Scales and comparisons

• 42,193,921 seconds is equal to 1 year, 17 weeks, 5 days, 8 hours, 32 minutes, 1 second.
• To count from 1 to 42,193,921 would take you about 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 42193921 cubic inches would be around 29 feet tall.

Recreational maths with 42193921

• 42193921 backwards is 12939124
• The number of decimal digits it has is: 8
• The sum of 42193921's digits is 31
• More coming soon!