21402082

Names of 21402082

• Cardinal: 21402082 can be written as Twenty-one million, four hundred two thousand and eighty-two.

Scientific notation

• Scientific notation: 2.1402082 × 10⁷

Factors of 21402082

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1254

Divisors of 21402082

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 13 17 26 34 41 82 221 442 533 697 1066 1181 1394 2362 9061 15353 18122 20077 30706 40154 48421 96842 261001 522002 629473 823157 1258946 1646314 10701041 21402082
• Sum of all divisors σ(n): 37530864
• Sum of proper divisors (its aliquot sum) s(n): 16128782
• 21402082 is a deficient number, because the sum of its proper divisors (16128782) is less than itself. Its deficiency is 5273300

Bases of 21402082

• Binary: 1010001101001000111100010₂
• Hexadecimal: 0x14691E2
• Base-36: CQPYA

Squares and roots of 21402082

• 21402082 squared (21402082²) is 458049113934724
• 21402082 cubed (21402082³) is 9803204696458305695368
• The square root of 21402082 is 4626.2384287885
• The cube root of 21402082 is 277.6421131783

Scales and comparisons

• 21,402,082 seconds is equal to 35 weeks, 2 days, 17 hours, 1 minute, 22 seconds.
• To count from 1 to 21,402,082 would take you about thirteen 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 21402082 cubic inches would be around 23.1 feet tall.

Recreational maths with 21402082

• 21402082 backwards is 28020412
• The number of decimal digits it has is: 8
• The sum of 21402082's digits is 19
• More coming soon!