1138912020

Names of 1138912020

• Cardinal: 1138912020 can be written as One billion, one hundred thirty-eight million, nine hundred twelve thousand and twenty.

Scientific notation

• Scientific notation: 1.13891202 × 10⁹

Factors of 1138912020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6020

Divisors of 1138912020

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1361 2722 4083 4649 5444 6805 8166 9298 12249 13610 13947 16332 18596 20415 23245 24498 27220 27894 40830 41841 46490 48996 55788 61245 69735 81660 83682 92980 122490 139470 167364 209205 244980 278940 418410 836820 6327289 12654578 18981867 25309156 31636445 37963734 56945601 63272890 75927468 94909335 113891202 126545780 189818670 227782404 284728005 379637340 569456010 1138912020
• Sum of all divisors σ(n): 3457981800
• Sum of proper divisors (its aliquot sum) s(n): 2319069780
• 1138912020 is an abundant number, because the sum of its proper divisors (2319069780) is greater than itself. Its abundance is 1180157760

Bases of 1138912020

• Binary: 1000011111000100110101100010100₂
• Hexadecimal: 0x43E26B14
• Base-36: IU2U50

Squares and roots of 1138912020

• 1138912020 squared (1138912020²) is 1297120589300480400
• 1138912020 cubed (1138912020³) is 1477306230543800519334408000
• The square root of 1138912020 is 33747.7705930333
• The cube root of 1138912020 is 1044.3114959877

Scales and comparisons

• 1,138,912,020 seconds is equal to 36 years, 11 weeks, 20 hours, 27 minutes.
• To count from 1 to 1,138,912,020 would take you about seventy-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 1138912020 cubic inches would be around 87 feet tall.

Recreational maths with 1138912020

• 1138912020 backwards is 0202198311
• The number of decimal digits it has is: 10
• The sum of 1138912020's digits is 27
• More coming soon!