21946489

Names of 21946489

• Cardinal: 21946489 can be written as Twenty-one million, nine hundred forty-six thousand, four hundred eighty-nine.

Scientific notation

• Scientific notation: 2.1946489 × 10⁷

Factors of 21946489

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 172934

Divisors of 21946489

• Number of divisors d(n): 4
• Complete list of divisors:
  1 127 172807 21946489
• Sum of all divisors σ(n): 22119424
• Sum of proper divisors (its aliquot sum) s(n): 172935
• 21946489 is a deficient number, because the sum of its proper divisors (172935) is less than itself. Its deficiency is 21773554

Bases of 21946489

• Binary: 1010011101110000001111001₂
• Hexadecimal: 0x14EE079
• Base-36: D2E0P

Squares and roots of 21946489

• 21946489 squared (21946489²) is 481648379427121
• 21946489 cubed (21946489³) is 10570490860965137328169
• The square root of 21946489 is 4684.7079951689
• The cube root of 21946489 is 279.9765669165

Scales and comparisons

• 21,946,489 seconds is equal to 36 weeks, 2 days, 14 minutes, 49 seconds.
• To count from 1 to 21,946,489 would take you about two weeks!

  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 21946489 cubic inches would be around 23.3 feet tall.

Recreational maths with 21946489

• 21946489 backwards is 98464912
• The number of decimal digits it has is: 8
• The sum of 21946489's digits is 43
• More coming soon!