13913640

Names of 13913640

• Cardinal: 13913640 can be written as Thirteen million, nine hundred thirteen thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.391364 × 10⁷

Factors of 13913640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1014

Divisors of 13913640

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 36 39 40 45 52 54 60 65 72 78 90 104 108 117 120 130 135 156 180 195 216 234 260 270 312 351 360 390 468 520 540 585 702 780 936 991 1080 1170 1404 1560 1755 1982 2340 2808 2973 3510 3964 4680 4955 5946 7020 7928 8919 9910 11892 12883 14040 14865 17838 19820 23784 25766 26757 29730 35676 38649 39640 44595 51532 53514 59460 64415 71352 77298 89190 103064 107028 115947 118920 128830 133785 154596 178380 193245 214056 231894 257660 267570 309192 347841 356760 386490 463788 515320 535140 579735 695682 772980 927576 1070280 1159470 1391364 1545960 1739205 2318940 2782728 3478410 4637880 6956820 13913640
• Sum of all divisors σ(n): 49996800
• Sum of proper divisors (its aliquot sum) s(n): 36083160
• 13913640 is an abundant number, because the sum of its proper divisors (36083160) is greater than itself. Its abundance is 22169520

Bases of 13913640

• Binary: 110101000100111000101000₂
• Hexadecimal: 0xD44E28
• Base-36: 8A7U0

Squares and roots of 13913640

• 13913640 squared (13913640²) is 193589378049600
• 13913640 cubed (13913640³) is 2693532914006036544000
• The square root of 13913640 is 3730.0991943915
• The cube root of 13913640 is 240.5176327653

Scales and comparisons

• 13,913,640 seconds is equal to 23 weeks, 54 minutes.
• To count from 1 to 13,913,640 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 13913640 cubic inches would be around 20 feet tall.

Recreational maths with 13913640

• 13913640 backwards is 04631931
• 13913640 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13913640's digits is 27
• More coming soon!