21027948285

Names of 21027948285

• Cardinal: 21027948285 can be written as Twenty-one billion, twenty-seven million, nine hundred forty-eight thousand, two hundred eighty-five.

Scientific notation

• Scientific notation: 2.1027948285 × 10¹⁰

Factors of 21027948285

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2118

Divisors of 21027948285

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 15 29 47 87 141 145 235 435 705 941 1093 1363 2823 3279 4089 4705 5465 6815 14115 16395 20445 27289 31697 44227 51371 81867 95091 132681 136445 154113 158485 221135 256855 409335 475455 663405 770565 1028513 1282583 1489759 3085539 3847749 4469277 5142565 6412915 7448795 15427695 19238745 22346385 29826877 48340111 89480631 145020333 149134385 241700555 447403155 725101665 1401863219 4205589657 7009316095 21027948285
• Sum of all divisors σ(n): 35615738880
• Sum of proper divisors (its aliquot sum) s(n): 14587790595
• 21027948285 is a deficient number, because the sum of its proper divisors (14587790595) is less than itself. Its deficiency is 6440157690

Bases of 21027948285

• Binary: 10011100101010111010000011011111101₂
• Hexadecimal: 0x4E55D06FD
• Base-36: 9NRHWQL

Squares and roots of 21027948285

• 21027948285 squared (21027948285²) is 442174609076634441225
• 21027948285 cubed (21027948285³) is 9298024812603560631929172049125
• The square root of 21027948285 is 145010.1661436191
• The cube root of 21027948285 is 2760.1475576171

Scales and comparisons

• 21,027,948,285 seconds is equal to 668 years, 32 weeks, 3 days, 44 minutes, 45 seconds.
• To count from 1 to 21,027,948,285 would take you about one thousand, three hundred thirty-seven 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 21027948285 cubic inches would be around 230 feet tall.

Recreational maths with 21027948285

• 21027948285 backwards is 58284972012
• The number of decimal digits it has is: 11
• The sum of 21027948285's digits is 48
• More coming soon!