1998424400

Names of 1998424400

• Cardinal: 1998424400 can be written as One billion, nine hundred ninety-eight million, four hundred twenty-four thousand, four hundred.

Scientific notation

• Scientific notation: 1.9984244 × 10⁹

Factors of 1998424400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 12170

Divisors of 1998424400

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 35 40 50 56 59 70 80 100 112 118 140 175 200 236 280 295 350 400 413 472 560 590 700 826 944 1180 1400 1475 1652 2065 2360 2800 2950 3304 4130 4720 5900 6608 8260 10325 11800 12097 16520 20650 23600 24194 33040 41300 48388 60485 82600 84679 96776 120970 165200 169358 193552 241940 302425 338716 423395 483880 604850 677432 713723 846790 967760 1209700 1354864 1427446 1693580 2116975 2419400 2854892 3387160 3568615 4233950 4838800 4996061 5709784 6774320 7137230 8467900 9992122 11419568 14274460 16935800 17843075 19984244 24980305 28548920 33871600 35686150 39968488 49960610 57097840 71372300 79936976 99921220 124901525 142744600 199842440 249803050 285489200 399684880 499606100 999212200 1998424400
• Sum of all divisors σ(n): 5580565440
• Sum of proper divisors (its aliquot sum) s(n): 3582141040
• 1998424400 is an abundant number, because the sum of its proper divisors (3582141040) is greater than itself. Its abundance is 1583716640

Bases of 1998424400

• Binary: 1110111000111011000100101010000₂
• Hexadecimal: 0x771D8950
• Base-36: X1T64W

Squares and roots of 1998424400

• 1998424400 squared (1998424400²) is 3993700082515360000
• 1998424400 cubed (1998424400³) is 7981107691180708798784000000
• The square root of 1998424400 is 44703.7403356811
• The cube root of 1998424400 is 1259.5901077065

Scales and comparisons

• 1,998,424,400 seconds is equal to 63 years, 28 weeks, 1 day, 21 hours, 53 minutes, 20 seconds.
• To count from 1 to 1,998,424,400 would take you about one hundred twenty-seven years!

  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 1998424400 cubic inches would be around 105 feet tall.

Recreational maths with 1998424400

• 1998424400 backwards is 0044248991
• The number of decimal digits it has is: 10
• The sum of 1998424400's digits is 41
• More coming soon!