21143704900

Names of 21143704900

• Cardinal: 21143704900 can be written as Twenty-one billion, one hundred forty-three million, seven hundred four thousand, nine hundred.

Scientific notation

• Scientific notation: 2.11437049 × 10¹⁰

Factors of 21143704900

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1135

Divisors of 21143704900

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 4 5 10 20 25 50 100 409 719 818 1438 1636 2045 2876 3595 4090 7190 8180 10225 14380 17975 20450 35950 40900 71900 294071 516961 588142 1033922 1176284 1470355 2067844 2584805 2940710 5169610 5881420 7351775 10339220 12924025 14703550 25848050 29407100 51696100 211437049 422874098 845748196 1057185245 2114370490 4228740980 5285926225 10571852450 21143704900
• Sum of all divisors σ(n): 46058078570
• Sum of proper divisors (its aliquot sum) s(n): 24914373670
• 21143704900 is an abundant number, because the sum of its proper divisors (24914373670) is greater than itself. Its abundance is 3770668770

Bases of 21143704900

• Binary: 10011101100010000110101010101000100₂
• Hexadecimal: 0x4EC435544
• Base-36: 9POEZ44

Squares and roots of 21143704900

• 21143704900 squared (21143704900²) is 447056256898284010000
• 21143704900 cubed (21143704900³) is 9452425569555906423828649000000
• The square root of 21143704900 is 145408.7511121665
• The cube root of 21143704900 is 2765.2030650045

Scales and comparisons

• 21,143,704,900 seconds is equal to 672 years, 15 weeks, 5 days, 19 hours, 21 minutes, 40 seconds.
• To count from 1 to 21,143,704,900 would take you about one thousand, three hundred forty-four years!

  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 21143704900 cubic inches would be around 230.4 feet tall.

Recreational maths with 21143704900

• 21143704900 backwards is 00940734112
• The number of decimal digits it has is: 11
• The sum of 21143704900's digits is 31
• More coming soon!