21422728125

Names of 21422728125

• Cardinal: 21422728125 can be written as Twenty-one billion, four hundred twenty-two million, seven hundred twenty-eight thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 2.1422728125 × 10¹⁰

Factors of 21422728125

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 28219

Divisors of 21422728125

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 9 15 25 27 45 75 81 125 135 225 243 375 405 625 675 1125 1215 1875 2025 3125 3375 5625 6075 9375 10125 16875 28125 28211 30375 50625 84375 84633 141055 151875 253125 253899 423165 705275 759375 761697 1269495 2115825 2285091 3526375 3808485 6347475 6855273 10579125 11425455 17631875 19042425 31737375 34276365 52895625 57127275 88159375 95212125 158686875 171381825 264478125 285636375 476060625 793434375 856909125 1428181875 2380303125 4284545625 7140909375 21422728125
• Sum of all divisors σ(n): 40111370208
• Sum of proper divisors (its aliquot sum) s(n): 18688642083
• 21422728125 is a deficient number, because the sum of its proper divisors (18688642083) is less than itself. Its deficiency is 2734086042

Bases of 21422728125

• Binary: 10011111100111001001110001110111101₂
• Hexadecimal: 0x4FCE4E3BD
• Base-36: 9UAJET9

Squares and roots of 21422728125

• 21422728125 squared (21422728125²) is 458933280317666015625
• 21422728125 cubed (21422728125³) is 9831602891759772687286376953125
• The square root of 21422728125 is 146365.0509001381
• The cube root of 21422728125 is 2777.3136293001

Scales and comparisons

• 21,422,728,125 seconds is equal to 681 years, 9 weeks, 1 day, 5 hours, 48 minutes, 45 seconds.
• To count from 1 to 21,422,728,125 would take you about one thousand, three hundred sixty-two 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 21422728125 cubic inches would be around 231.4 feet tall.

Recreational maths with 21422728125

• 21422728125 backwards is 52182722412
• The number of decimal digits it has is: 11
• The sum of 21422728125's digits is 36
• More coming soon!