21062020

Names of 21062020

• Cardinal: 21062020 can be written as Twenty-one million, sixty-two thousand and twenty.

Scientific notation

• Scientific notation: 2.106202 × 10⁷

Factors of 21062020

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 279

Divisors of 21062020

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 10 14 20 23 28 31 35 46 62 70 92 115 124 140 155 161 211 217 230 310 322 422 434 460 620 644 713 805 844 868 1055 1085 1426 1477 1610 2110 2170 2852 2954 3220 3565 4220 4340 4853 4991 5908 6541 7130 7385 9706 9982 13082 14260 14770 19412 19964 24265 24955 26164 29540 32705 33971 45787 48530 49910 65410 67942 91574 97060 99820 130820 135884 150443 169855 183148 228935 300886 339710 457870 601772 679420 752215 915740 1053101 1504430 2106202 3008860 4212404 5265505 10531010 21062020
• Sum of all divisors σ(n): 54706176
• Sum of proper divisors (its aliquot sum) s(n): 33644156
• 21062020 is an abundant number, because the sum of its proper divisors (33644156) is greater than itself. Its abundance is 12582136

Bases of 21062020

• Binary: 1010000010110000110000100₂
• Hexadecimal: 0x1416184
• Base-36: CJFK4

Squares and roots of 21062020

• 21062020 squared (21062020²) is 443608686480400
• 21062020 cubed (21062020³) is 9343295026823914408000
• The square root of 21062020 is 4589.3376428413
• The cube root of 21062020 is 276.1637514579

Scales and comparisons

• 21,062,020 seconds is equal to 34 weeks, 5 days, 18 hours, 33 minutes, 40 seconds.
• To count from 1 to 21,062,020 would take you about fifteen 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 21062020 cubic inches would be around 23 feet tall.

Recreational maths with 21062020

• 21062020 backwards is 02026012
• The number of decimal digits it has is: 8
• The sum of 21062020's digits is 13
• More coming soon!