21429222

Names of 21429222

• Cardinal: 21429222 can be written as Twenty-one million, four hundred twenty-nine thousand, two hundred twenty-two.

Scientific notation

• Scientific notation: 2.1429222 × 10⁷

Factors of 21429222

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 83107

Divisors of 21429222

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 6 43 86 129 258 83059 166118 249177 498354 3571537 7143074 10714611 21429222
• Sum of all divisors σ(n): 43855680
• Sum of proper divisors (its aliquot sum) s(n): 22426458
• 21429222 is an abundant number, because the sum of its proper divisors (22426458) is greater than itself. Its abundance is 997236

Bases of 21429222

• Binary: 1010001101111101111100110₂
• Hexadecimal: 0x146FBE6
• Base-36: CRAW6

Squares and roots of 21429222

• 21429222 squared (21429222²) is 459211555525284
• 21429222 cubed (21429222³) is 9840546368316637449048
• The square root of 21429222 is 4629.1707680749
• The cube root of 21429222 is 277.7594230123

Scales and comparisons

• 21,429,222 seconds is equal to 35 weeks, 3 days, 33 minutes, 42 seconds.
• To count from 1 to 21,429,222 would take you about fifty minutes!

  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 21429222 cubic inches would be around 23.1 feet tall.

Recreational maths with 21429222

• 21429222 backwards is 22292412
• The number of decimal digits it has is: 8
• The sum of 21429222's digits is 24
• More coming soon!