28444850721

Names of 28444850721

• Cardinal: 28444850721 can be written as Twenty-eight billion, four hundred forty-four million, eight hundred fifty thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 2.8444850721 × 10¹⁰

Factors of 28444850721

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6363

Divisors of 28444850721

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 17 21 51 63 119 153 257 289 357 771 867 1071 1799 2023 2313 2601 4369 5397 6069 6079 13107 16191 18207 18237 30583 39321 42553 54711 74273 91749 103343 127659 222819 275247 310029 382977 519911 668457 723401 930087 1559733 1562303 1756831 2170203 4679199 4686909 5270493 6510609 10936121 12297817 14060727 15811479 26559151 32808363 36893451 79677453 98425089 110680353 185914057 239032359 451505567 557742171 1354516701 1673226513 3160538969 4063550103 9481616907 28444850721
• Sum of all divisors σ(n): 50083537920
• Sum of proper divisors (its aliquot sum) s(n): 21638687199
• 28444850721 is a deficient number, because the sum of its proper divisors (21638687199) is less than itself. Its deficiency is 6806163522

Bases of 28444850721

• Binary: 11010011111011100011111101000100001₂
• Hexadecimal: 0x69F71FA21
• Base-36: D2FBVA9

Squares and roots of 28444850721

• 28444850721 squared (28444850721²) is 809109532539974219841
• 28444850721 cubed (28444850721³) is 23014999870037658648565681355361
• The square root of 28444850721 is 168656.0129998335
• The cube root of 28444850721 is 3052.5858468613

Scales and comparisons

• 28,444,850,721 seconds is equal to 904 years, 23 weeks, 5 days, 19 hours, 25 minutes, 21 seconds.
• To count from 1 to 28,444,850,721 would take you about one thousand, eight hundred eight 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 28444850721 cubic inches would be around 254.4 feet tall.

Recreational maths with 28444850721

• 28444850721 backwards is 12705844482
• The number of decimal digits it has is: 11
• The sum of 28444850721's digits is 45
• More coming soon!