21998346

Names of 21998346

• Cardinal: 21998346 can be written as Twenty-one million, nine hundred ninety-eight thousand, three hundred forty-six.

Scientific notation

• Scientific notation: 2.1998346 × 10⁷

Factors of 21998346

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 6997

Divisors of 21998346

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 6 571 1142 1713 3426 6421 12842 19263 38526 3666391 7332782 10999173 21998346
• Sum of all divisors σ(n): 44080608
• Sum of proper divisors (its aliquot sum) s(n): 22082262
• 21998346 is an abundant number, because the sum of its proper divisors (22082262) is greater than itself. Its abundance is 83916

Bases of 21998346

• Binary: 1010011111010101100001010₂
• Hexadecimal: 0x14FAB0A
• Base-36: D3I16

Squares and roots of 21998346

• 21998346 squared (21998346²) is 483927226735716
• 21998346 cubed (21998346³) is 10645598572552731125736
• The square root of 21998346 is 4690.2394395173
• The cube root of 21998346 is 280.1969108091

Scales and comparisons

• 21,998,346 seconds is equal to 36 weeks, 2 days, 14 hours, 39 minutes, 6 seconds.
• To count from 1 to 21,998,346 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 21998346 cubic inches would be around 23.3 feet tall.

Recreational maths with 21998346

• 21998346 backwards is 64389912
• The number of decimal digits it has is: 8
• The sum of 21998346's digits is 42
• More coming soon!