21038190

Names of 21038190

• Cardinal: 21038190 can be written as Twenty-one million, thirty-eight thousand, one hundred ninety.

Scientific notation

• Scientific notation: 2.103819 × 10⁷

Factors of 21038190

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 2224

Divisors of 21038190

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 5 6 10 15 30 383 766 1149 1831 1915 2298 3662 3830 5493 5745 9155 10986 11490 18310 27465 54930 701273 1402546 2103819 3506365 4207638 7012730 10519095 21038190
• Sum of all divisors σ(n): 50651136
• Sum of proper divisors (its aliquot sum) s(n): 29612946
• 21038190 is an abundant number, because the sum of its proper divisors (29612946) is greater than itself. Its abundance is 8574756

Bases of 21038190

• Binary: 1010000010000010001101110₂
• Hexadecimal: 0x141046E
• Base-36: CIX66

Squares and roots of 21038190

• 21038190 squared (21038190²) is 442605438476100
• 21038190 cubed (21038190³) is 9311617309693502259000
• The square root of 21038190 is 4586.7406728525
• The cube root of 21038190 is 276.0595597151

Scales and comparisons

• 21,038,190 seconds is equal to 34 weeks, 5 days, 11 hours, 56 minutes, 30 seconds.
• To count from 1 to 21,038,190 would take you about five hours!

  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 21038190 cubic inches would be around 23 feet tall.

Recreational maths with 21038190

• 21038190 backwards is 09183012
• The number of decimal digits it has is: 8
• The sum of 21038190's digits is 24
• More coming soon!