13538820438

Names of 13538820438

• Cardinal: 13538820438 can be written as Thirteen billion, five hundred thirty-eight million, eight hundred twenty thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 1.3538820438 × 10¹⁰

Factors of 13538820438

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 159418

Divisors of 13538820438

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 11 13 18 22 26 27 33 39 54 66 78 99 117 121 143 198 234 242 286 297 351 363 429 594 702 726 858 1089 1287 1573 2178 2574 3146 3267 3861 4719 6534 7722 9438 14157 28314 42471 84942 159389 318778 478167 956334 1434501 1753279 2072057 2869002 3506558 4144114 4303503 5259837 6216171 8607006 10519674 12432342 15779511 18648513 19286069 22792627 31559022 37297026 38572138 45585254 47338533 55945539 57858207 68377881 94677066 111891078 115716414 136755762 173574621 205133643 250718897 347149242 410267286 501437794 520723863 615400929 752156691 1041447726 1230801858 1504313382 2256470073 4512940146 6769410219 13538820438
• Sum of all divisors σ(n): 35614101600
• Sum of proper divisors (its aliquot sum) s(n): 22075281162
• 13538820438 is an abundant number, because the sum of its proper divisors (22075281162) is greater than itself. Its abundance is 8536460724

Bases of 13538820438

• Binary: 1100100110111110100000000101010110₂
• Hexadecimal: 0x326FA0156
• Base-36: 67WNWPI

Squares and roots of 13538820438

• 13538820438 squared (13538820438²) is 183299658852406511844
• 13538820438 cubed (13538820438³) is 2481661167549388908037836267672
• The square root of 13538820438 is 116356.4370286405
• The cube root of 13538820438 is 2383.3817494435

Scales and comparisons

• 13,538,820,438 seconds is equal to 430 years, 25 weeks, 4 days, 7 hours, 27 minutes, 18 seconds.
• To count from 1 to 13,538,820,438 would take you about eight hundred sixty 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 13538820438 cubic inches would be around 198.6 feet tall.

Recreational maths with 13538820438

• 13538820438 backwards is 83402883531
• The number of decimal digits it has is: 11
• The sum of 13538820438's digits is 45
• More coming soon!