13388938065

Names of 13388938065

• Cardinal: 13388938065 can be written as Thirteen billion, three hundred eighty-eight million, nine hundred thirty-eight thousand and sixty-five.

Scientific notation

• Scientific notation: 1.3388938065 × 10¹⁰

Factors of 13388938065

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1488

Divisors of 13388938065

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 9 15 27 41 45 123 135 205 369 615 1107 1439 1681 1845 4317 5043 5535 7195 8405 12951 15129 21585 25215 38853 45387 58999 64755 68921 75645 176997 194265 206763 226935 294995 344605 530991 620289 884985 1033815 1592973 1860867 2418959 2654955 3101445 7256877 7964865 9304335 12094795 21770631 36284385 65311893 99177319 108853155 297531957 326559465 495886595 892595871 1487659785 2677787613 4462979355 13388938065
• Sum of all divisors σ(n): 24414566400
• Sum of proper divisors (its aliquot sum) s(n): 11025628335
• 13388938065 is a deficient number, because the sum of its proper divisors (11025628335) is less than itself. Its deficiency is 2363309730

Bases of 13388938065

• Binary: 1100011110000010101111101101010001₂
• Hexadecimal: 0x31E0AFB51
• Base-36: 65FFEQ9

Squares and roots of 13388938065

• 13388938065 squared (13388938065²) is 179263662508405944225
• 13388938065 cubed (13388938065³) is 2400150074630109729106369424625
• The square root of 13388938065 is 115710.5788811031
• The cube root of 13388938065 is 2374.5539662477

Scales and comparisons

• 13,388,938,065 seconds is equal to 425 years, 37 weeks, 5 days, 13 hours, 27 minutes, 45 seconds.
• To count from 1 to 13,388,938,065 would take you about eight hundred fifty-one 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 13388938065 cubic inches would be around 197.9 feet tall.

Recreational maths with 13388938065

• 13388938065 backwards is 56083988331
• The number of decimal digits it has is: 11
• The sum of 13388938065's digits is 54
• More coming soon!