1998990
1,998,990 is an even composite number composed of six prime numbers multiplied together.
1998990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 1998990:
2 × 32 × 5 × 7 × 19 × 167
(2 × 3 × 3 × 5 × 7 × 19 × 167)See below for interesting mathematical facts about the number 1998990 from the Numbermatics database.
Names of 1998990
- Cardinal: 1998990 can be written as One million, nine hundred ninety-eight thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.99899 × 106
Factors of 1998990
Divisors of 1998990
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 19 21 30 35 38 42 45 57 63 70 90 95 105 114 126 133 167 171 190 210 266 285 315 334 342 399 501 570 630 665 798 835 855 1002 1169 1197 1330 1503 1670 1710 1995 2338 2394 2505 3006 3173 3507 3990 5010 5845 5985 6346 7014 7515 9519 10521 11690 11970 15030 15865 17535 19038 21042 22211 28557 31730 35070 44422 47595 52605 57114 66633 95190 105210 111055 133266 142785 199899 222110 285570 333165 399798 666330 999495 1998990
- Sum of all divisors σ(n): 6289920
- Sum of proper divisors (its aliquot sum) s(n): 4290930
- 1998990 is an abundant number, because the sum of its proper divisors (4290930) is greater than itself. Its abundance is 2291940
Bases of 1998990
- Binary: 1111010000000100011102
- Hexadecimal: 0x1E808E
- Base-36: 16UFI
Squares and roots of 1998990
- 1998990 squared (19989902) is 3995961020100
- 1998990 cubed (19989903) is 7987886119569699000
-
The
square root of 1998990 is 1413.8564283551 -
The
cube root of 1998990 is 125.9708927473
Scales and comparisons
How big is 1998990?- 1,998,990 seconds is equal to 3 weeks, 2 days, 3 hours, 16 minutes, 30 seconds.
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To count from 1 to 1,998,990 would take you about 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 1998990 cubic inches would be around 10.5 feet tall.
Recreational maths with 1998990
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The information we have on file for 1998990 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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