18938840382

Names of 18938840382

• Cardinal: 18938840382 can be written as Eighteen billion, nine hundred thirty-eight million, eight hundred forty thousand, three hundred eighty-two.

Scientific notation

• Scientific notation: 1.8938840382 × 10¹⁰

Factors of 18938840382

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1242240

Divisors of 18938840382

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 33 42 63 66 77 99 121 126 154 198 231 242 363 462 693 726 847 1089 1386 1694 2178 2541 5082 7623 15246 1242217 2484434 3726651 7453302 8695519 11179953 13664387 17391038 22359906 26086557 27328774 40993161 52173114 78259671 81986322 95650709 122979483 150308257 156519342 191301418 245958966 286952127 300616514 450924771 573904254 860856381 901849542 1052157799 1352774313 1721712762 2104315598 2705548626 3156473397 6312946794 9469420191 18938840382
• Sum of all divisors σ(n): 51547078128
• Sum of proper divisors (its aliquot sum) s(n): 32608237746
• 18938840382 is an abundant number, because the sum of its proper divisors (32608237746) is greater than itself. Its abundance is 13669397364

Bases of 18938840382

• Binary: 10001101000110101111100010100111110₂
• Hexadecimal: 0x468D7C53E
• Base-36: 8P7P2RI

Squares and roots of 18938840382

• 18938840382 squared (18938840382²) is 358679675014873905924
• 18938840382 cubed (18938840382³) is 6792977113374330380151520222968
• The square root of 18938840382 is 137618.4594522113
• The cube root of 18938840382 is 2665.5354408749

Scales and comparisons

• 18,938,840,382 seconds is equal to 602 years, 10 weeks, 1 day, 12 hours, 59 minutes, 42 seconds.
• To count from 1 to 18,938,840,382 would take you about one thousand, two hundred 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 18938840382 cubic inches would be around 222.1 feet tall.

Recreational maths with 18938840382

• 18938840382 backwards is 28304883981
• The number of decimal digits it has is: 11
• The sum of 18938840382's digits is 54
• More coming soon!