1388634120

Names of 1388634120

• Cardinal: 1388634120 can be written as One billion, three hundred eighty-eight million, six hundred thirty-four thousand, one hundred twenty.

Scientific notation

• Scientific notation: 1.38863412 × 10⁹

Factors of 1388634120

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 226928

Divisors of 1388634120

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 30 34 36 40 45 51 60 68 72 85 90 102 120 136 153 170 180 204 255 306 340 360 408 510 612 680 765 1020 1224 1530 2040 3060 6120 226901 453802 680703 907604 1134505 1361406 1815208 2042109 2269010 2722812 3403515 3857317 4084218 4538020 5445624 6807030 7714634 8168436 9076040 10210545 11571951 13614060 15429268 16336872 19286585 20421090 23143902 27228120 30858536 34715853 38573170 40842180 46287804 57859755 69431706 77146340 81684360 92575608 115719510 138863412 154292680 173579265 231439020 277726824 347158530 462878040 694317060 1388634120
• Sum of all divisors σ(n): 4778556120
• Sum of proper divisors (its aliquot sum) s(n): 3389922000
• 1388634120 is an abundant number, because the sum of its proper divisors (3389922000) is greater than itself. Its abundance is 2001287880

Bases of 1388634120

• Binary: 1010010110001001110000000001000₂
• Hexadecimal: 0x52C4E008
• Base-36: MYR8Y0

Squares and roots of 1388634120

• 1388634120 squared (1388634120²) is 1928304719228174400
• 1388634120 cubed (1388634120³) is 2677709726877263037150528000
• The square root of 1388634120 is 37264.3813849097
• The cube root of 1388634120 is 1115.6533590231

Scales and comparisons

• 1,388,634,120 seconds is equal to 44 years, 8 weeks, 3 hours, 42 minutes.
• To count from 1 to 1,388,634,120 would take you about eighty-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 1388634120 cubic inches would be around 93 feet tall.

Recreational maths with 1388634120

• 1388634120 backwards is 0214368831
• 1388634120 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1388634120's digits is 36
• More coming soon!