13147920

Names of 13147920

• Cardinal: 13147920 can be written as Thirteen million, one hundred forty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.314792 × 10⁷

Factors of 13147920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2039

Divisors of 13147920

• Number of divisors d(n): 100
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 81 90 108 120 135 144 162 180 216 240 270 324 360 405 432 540 648 720 810 1080 1296 1620 2029 2160 3240 4058 6087 6480 8116 10145 12174 16232 18261 20290 24348 30435 32464 36522 40580 48696 54783 60870 73044 81160 91305 97392 109566 121740 146088 162320 164349 182610 219132 243480 273915 292176 328698 365220 438264 486960 547830 657396 730440 821745 876528 1095660 1314792 1460880 1643490 2191320 2629584 3286980 4382640 6573960 13147920
• Sum of all divisors σ(n): 45687180
• Sum of proper divisors (its aliquot sum) s(n): 32539260
• 13147920 is an abundant number, because the sum of its proper divisors (32539260) is greater than itself. Its abundance is 19391340

Bases of 13147920

• Binary: 110010001001111100010000₂
• Hexadecimal: 0xC89F10
• Base-36: 7TT00

Squares and roots of 13147920

• 13147920 squared (13147920²) is 172867800326400
• 13147920 cubed (13147920³) is 2272852009267481088000
• The square root of 13147920 is 3626.0060672867
• The cube root of 13147920 is 236.0219265273

Scales and comparisons

• 13,147,920 seconds is equal to 21 weeks, 5 days, 4 hours, 12 minutes.
• To count from 1 to 13,147,920 would take you about thirty-two 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 13147920 cubic inches would be around 19.7 feet tall.

Recreational maths with 13147920

• 13147920 backwards is 02974131
• 13147920 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13147920's digits is 27
• More coming soon!