19959940

Names of 19959940

• Cardinal: 19959940 can be written as Nineteen million, nine hundred fifty-nine thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.995994 × 10⁷

Factors of 19959940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1035

Divisors of 19959940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 10 11 13 14 20 22 26 28 35 44 52 55 65 70 77 91 110 130 140 143 154 182 220 260 286 308 364 385 455 572 715 770 910 997 1001 1430 1540 1820 1994 2002 2860 3988 4004 4985 5005 6979 9970 10010 10967 12961 13958 19940 20020 21934 25922 27916 34895 43868 51844 54835 64805 69790 76769 90727 109670 129610 139580 142571 153538 181454 219340 259220 285142 307076 362908 383845 453635 570284 712855 767690 907270 997997 1425710 1535380 1814540 1995994 2851420 3991988 4989985 9979970 19959940
• Sum of all divisors σ(n): 56335104
• Sum of proper divisors (its aliquot sum) s(n): 36375164
• 19959940 is an abundant number, because the sum of its proper divisors (36375164) is greater than itself. Its abundance is 16415224

Bases of 19959940

• Binary: 1001100001001000010000100₂
• Hexadecimal: 0x1309084
• Base-36: BVT6S

Squares and roots of 19959940

• 19959940 squared (19959940²) is 398399204803600
• 19959940 cubed (19959940³) is 7952024223927567784000
• The square root of 19959940 is 4467.6548658105
• The cube root of 19959940 is 271.2604079055

Scales and comparisons

• 19,959,940 seconds is equal to 33 weeks, 25 minutes, 40 seconds.
• To count from 1 to 19,959,940 would take you about forty-nine 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 19959940 cubic inches would be around 22.6 feet tall.

Recreational maths with 19959940

• 19959940 backwards is 04995991
• The number of decimal digits it has is: 8
• The sum of 19959940's digits is 46
• More coming soon!