21994122

Names of 21994122

• Cardinal: 21994122 can be written as Twenty-one million, nine hundred ninety-four thousand, one hundred twenty-two.

Scientific notation

• Scientific notation: 2.1994122 × 10⁷

Factors of 21994122

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 3158

Divisors of 21994122

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 29 41 58 82 87 123 174 246 1189 2378 3083 3567 6166 7134 9249 18498 89407 126403 178814 252806 268221 379209 536442 758418 3665687 7331374 10997061 21994122
• Sum of all divisors σ(n): 46630080
• Sum of proper divisors (its aliquot sum) s(n): 24635958
• 21994122 is an abundant number, because the sum of its proper divisors (24635958) is greater than itself. Its abundance is 2641836

Bases of 21994122

• Binary: 1010011111001101010001010₂
• Hexadecimal: 0x14F9A8A
• Base-36: D3ERU

Squares and roots of 21994122

• 21994122 squared (21994122²) is 483741402550884
• 21994122 cubed (21994122³) is 10639467424155253903848
• The square root of 21994122 is 4689.7891210587
• The cube root of 21994122 is 280.1789757105

Scales and comparisons

• 21,994,122 seconds is equal to 36 weeks, 2 days, 13 hours, 28 minutes, 42 seconds.
• To count from 1 to 21,994,122 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 21994122 cubic inches would be around 23.3 feet tall.

Recreational maths with 21994122

• 21994122 backwards is 22149912
• The number of decimal digits it has is: 8
• The sum of 21994122's digits is 30
• More coming soon!