13991040

Names of 13991040

• Cardinal: 13991040 can be written as Thirteen million, nine hundred ninety-one thousand and forty.

Scientific notation

• Scientific notation: 1.399104 × 10⁷

Factors of 13991040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 364

Divisors of 13991040

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 64 70 72 80 84 90 96 105 112 120 126 128 140 144 160 168 180 192 210 224 240 252 280 288 315 320 336 347 360 384 420 448 480 504 560 576 630 640 672 694 720 840 896 960 1008 1041 1120 1152 1260 1344 1388 1440 1680 1735 1920 2016 2082 2240 2429 2520 2688 2776 2880 3123 3360 3470 4032 4164 4480 4858 5040 5205 5552 5760 6246 6720 6940 7287 8064 8328 9716 10080 10410 11104 12145 12492 13440 13880 14574 15615 16656 19432 20160 20820 21861 22208 24290 24984 27760 29148 31230 33312 36435 38864 40320 41640 43722 44416 48580 49968 55520 58296 62460 66624 72870 77728 83280 87444 97160 99936 109305 111040 116592 124920 133248 145740 155456 166560 174888 194320 199872 218610 222080 233184 249840 291480 310912 333120 349776 388640 399744 437220 466368 499680 582960 666240 699552 777280 874440 932736 999360 1165920 1399104 1554560 1748880 1998720 2331840 2798208 3497760 4663680 6995520 13991040
• Sum of all divisors σ(n): 55373760
• Sum of proper divisors (its aliquot sum) s(n): 41382720
• 13991040 is an abundant number, because the sum of its proper divisors (41382720) is greater than itself. Its abundance is 27391680

Bases of 13991040

• Binary: 110101010111110010000000₂
• Hexadecimal: 0xD57C80
• Base-36: 8BVK0

Squares and roots of 13991040

• 13991040 squared (13991040²) is 195749200281600
• 13991040 cubed (13991040³) is 2738734891107876864000
• The square root of 13991040 is 3740.4598647759
• The cube root of 13991040 is 240.9627990765

Scales and comparisons

• 13,991,040 seconds is equal to 23 weeks, 22 hours, 24 minutes.
• To count from 1 to 13,991,040 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 13991040 cubic inches would be around 20.1 feet tall.

Recreational maths with 13991040

• 13991040 backwards is 04019931
• The number of decimal digits it has is: 8
• The sum of 13991040's digits is 27
• More coming soon!