13638699816

Names of 13638699816

• Cardinal: 13638699816 can be written as Thirteen billion, six hundred thirty-eight million, six hundred ninety-nine thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.3638699816 × 10¹⁰

Factors of 13638699816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 445

Divisors of 13638699816

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 433 866 1299 1732 2598 3031 3464 5196 6062 9093 10392 12124 18186 24248 36372 72744 187489 374978 562467 749956 1124934 1312423 1499912 2249868 2624846 3937269 4499736 5249692 7874538 10499384 15749076 31498152 81182737 162365474 243548211 324730948 487096422 568279159 649461896 974192844 1136558318 1704837477 1948385688 2273116636 3409674954 4546233272 6819349908 13638699816
• Sum of all divisors σ(n): 39057916800
• Sum of proper divisors (its aliquot sum) s(n): 25419216984
• 13638699816 is an abundant number, because the sum of its proper divisors (25419216984) is greater than itself. Its abundance is 11780517168

Bases of 13638699816

• Binary: 1100101100111011100000101100101000₂
• Hexadecimal: 0x32CEE0B28
• Base-36: 69K4O4O

Squares and roots of 13638699816

• 13638699816 squared (13638699816²) is 186014132670958433856
• 13638699816 cubed (13638699816³) is 2536990917032800380375475370496
• The square root of 13638699816 is 116784.8441194317
• The cube root of 13638699816 is 2389.2283367459

Scales and comparisons

• 13,638,699,816 seconds is equal to 433 years, 34 weeks, 5 days, 7 hours, 43 minutes, 36 seconds.
• To count from 1 to 13,638,699,816 would take you about eight hundred sixty-seven 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 13638699816 cubic inches would be around 199.1 feet tall.

Recreational maths with 13638699816

• 13638699816 backwards is 61899683631
• The number of decimal digits it has is: 11
• The sum of 13638699816's digits is 60
• More coming soon!