13978944

Names of 13978944

• Cardinal: 13978944 can be written as Thirteen million, nine hundred seventy-eight thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 1.3978944 × 10⁷

Factors of 13978944

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3479

Divisors of 13978944

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 144 168 192 224 252 288 336 448 504 576 672 1008 1344 2016 3467 4032 6934 10401 13868 20802 24269 27736 31203 41604 48538 55472 62406 72807 83208 97076 110944 124812 145614 166416 194152 218421 221888 249624 291228 332832 388304 436842 499248 582456 665664 776608 873684 998496 1164912 1553216 1747368 1996992 2329824 3494736 4659648 6989472 13978944
• Sum of all divisors σ(n): 45805344
• Sum of proper divisors (its aliquot sum) s(n): 31826400
• 13978944 is an abundant number, because the sum of its proper divisors (31826400) is greater than itself. Its abundance is 17847456

Bases of 13978944

• Binary: 110101010100110101000000₂
• Hexadecimal: 0xD54D40
• Base-36: 8BM80

Squares and roots of 13978944

• 13978944 squared (13978944²) is 195410875355136
• 13978944 cubed (13978944³) is 2731637683580426256384
• The square root of 13978944 is 3738.8426016617
• The cube root of 13978944 is 240.8933373261

Scales and comparisons

• 13,978,944 seconds is equal to 23 weeks, 19 hours, 2 minutes, 24 seconds.
• To count from 1 to 13,978,944 would take you about thirty-four weeks!

  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 13978944 cubic inches would be around 20.1 feet tall.

Recreational maths with 13978944

• 13978944 backwards is 44987931
• The number of decimal digits it has is: 8
• The sum of 13978944's digits is 45
• More coming soon!