18728113008

Names of 18728113008

• Cardinal: 18728113008 can be written as Eighteen billion, seven hundred twenty-eight million, one hundred thirteen thousand and eight.

Scientific notation

• Scientific notation: 1.8728113008 × 10¹⁰

Factors of 18728113008

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1612

Divisors of 18728113008

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 157 176 264 314 471 528 628 942 1256 1439 1727 1884 2512 2878 3454 3768 4317 5181 5756 6908 7536 8634 10362 11512 13816 15829 17268 20724 23024 24649 27632 31658 34536 41448 47487 49298 63316 69072 73947 82896 94974 98596 126632 147894 189948 197192 225923 253264 271139 295788 379896 394384 451846 542278 591576 677769 759792 813417 903692 1084556 1183152 1355538 1626834 1807384 2169112 2485153 2711076 3253668 3614768 4338224 4970306 5422152 6507336 7455459 9940612 10844304 13014672 14910918 19881224 29821836 35469911 39762448 59643672 70939822 106409733 119287344 141879644 212819466 283759288 390169021 425638932 567518576 780338042 851277864 1170507063 1560676084 1702555728 2341014126 3121352168 4682028252 6242704336 9364056504 18728113008
• Sum of all divisors σ(n): 53154455040
• Sum of proper divisors (its aliquot sum) s(n): 34426342032
• 18728113008 is an abundant number, because the sum of its proper divisors (34426342032) is greater than itself. Its abundance is 15698229024

Bases of 18728113008

• Binary: 10001011100010010000101001101110000₂
• Hexadecimal: 0x45C485370
• Base-36: 8LQ8GHC

Squares and roots of 18728113008

• 18728113008 squared (18728113008²) is 350742216840418808064
• 18728113008 cubed (18728113008³) is 6568739873663804139471253696512
• The square root of 18728113008 is 136850.6960449965
• The cube root of 18728113008 is 2655.6123138291

Scales and comparisons

• 18,728,113,008 seconds is equal to 595 years, 25 weeks, 5 days, 13 hours, 36 minutes, 48 seconds.
• To count from 1 to 18,728,113,008 would take you about one thousand, one hundred ninety 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 18728113008 cubic inches would be around 221.3 feet tall.

Recreational maths with 18728113008

• 18728113008 backwards is 80031182781
• The number of decimal digits it has is: 11
• The sum of 18728113008's digits is 39
• More coming soon!