19988000

Names of 19988000

• Cardinal: 19988000 can be written as Nineteen million, nine hundred eighty-eight thousand.

Scientific notation

• Scientific notation: 1.9988 × 10⁷

Factors of 19988000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 289

Divisors of 19988000

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 25 32 38 40 50 76 80 95 100 125 152 160 190 200 250 263 304 380 400 475 500 526 608 760 800 950 1000 1052 1315 1520 1900 2000 2104 2375 2630 3040 3800 4000 4208 4750 4997 5260 6575 7600 8416 9500 9994 10520 13150 15200 19000 19988 21040 24985 26300 32875 38000 39976 42080 49970 52600 65750 76000 79952 99940 105200 124925 131500 159904 199880 210400 249850 263000 399760 499700 526000 624625 799520 999400 1052000 1249250 1998800 2498500 3997600 4997000 9994000 19988000
• Sum of all divisors σ(n): 51891840
• Sum of proper divisors (its aliquot sum) s(n): 31903840
• 19988000 is an abundant number, because the sum of its proper divisors (31903840) is greater than itself. Its abundance is 11915840

Bases of 19988000

• Binary: 1001100001111111000100000₂
• Hexadecimal: 0x130FE20
• Base-36: BWEU8

Squares and roots of 19988000

• 19988000 squared (19988000²) is 399520144000000
• 19988000 cubed (19988000³) is 7985608638272000000000
• The square root of 19988000 is 4470.7941129065
• The cube root of 19988000 is 271.3874624459

Scales and comparisons

• 19,988,000 seconds is equal to 33 weeks, 8 hours, 13 minutes, 20 seconds.
• To count from 1 to 19,988,000 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 19988000 cubic inches would be around 22.6 feet tall.

Recreational maths with 19988000

• 19988000 backwards is 00088991
• The number of decimal digits it has is: 8
• The sum of 19988000's digits is 35
• More coming soon!