13721138240

Names of 13721138240

• Cardinal: 13721138240 can be written as Thirteen billion, seven hundred twenty-one million, one hundred thirty-eight thousand, two hundred forty.

Scientific notation

• Scientific notation: 1.372113824 × 10¹⁰

Factors of 13721138240

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 121829

Divisors of 13721138240

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 160 320 353 706 1412 1765 2824 3530 5648 7060 11296 14120 22592 28240 56480 112960 121469 242938 485876 607345 971752 1214690 1943504 2429380 3887008 4858760 7774016 9717520 19435040 38870080 42878557 85757114 171514228 214392785 343028456 428785570 686056912 857571140 1372113824 1715142280 2744227648 3430284560 6860569120 13721138240
• Sum of all divisors σ(n): 32766289560
• Sum of proper divisors (its aliquot sum) s(n): 19045151320
• 13721138240 is an abundant number, because the sum of its proper divisors (19045151320) is greater than itself. Its abundance is 5324013080

Bases of 13721138240

• Binary: 1100110001110101111111010001000000₂
• Hexadecimal: 0x331D7F440
• Base-36: 6AX7M0W

Squares and roots of 13721138240

• 13721138240 squared (13721138240²) is 188269634601190297600
• 13721138240 cubed (13721138240³) is 2583273682757219341916340224000
• The square root of 13721138240 is 117137.2623890451
• The cube root of 13721138240 is 2394.0325263405

Scales and comparisons

• 13,721,138,240 seconds is equal to 436 years, 15 weeks, 11 hours, 17 minutes, 20 seconds.
• To count from 1 to 13,721,138,240 would take you about eight hundred 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 13721138240 cubic inches would be around 199.5 feet tall.

Recreational maths with 13721138240

• 13721138240 backwards is 04283112731
• 13721138240 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13721138240's digits is 32
• More coming soon!