1997640
1,997,640 is an even composite number composed of five prime numbers multiplied together.
1997640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 1997640:
23 × 32 × 5 × 31 × 179
(2 × 2 × 2 × 3 × 3 × 5 × 31 × 179)See below for interesting mathematical facts about the number 1997640 from the Numbermatics database.
Names of 1997640
- Cardinal: 1997640 can be written as One million, nine hundred ninety-seven thousand, six hundred forty.
Scientific notation
- Scientific notation: 1.99764 × 106
Factors of 1997640
Divisors of 1997640
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 31 36 40 45 60 62 72 90 93 120 124 155 179 180 186 248 279 310 358 360 372 465 537 558 620 716 744 895 930 1074 1116 1240 1395 1432 1611 1790 1860 2148 2232 2685 2790 3222 3580 3720 4296 5370 5549 5580 6444 7160 8055 10740 11098 11160 12888 16110 16647 21480 22196 27745 32220 33294 44392 49941 55490 64440 66588 83235 99882 110980 133176 166470 199764 221960 249705 332940 399528 499410 665880 998820 1997640
- Sum of all divisors σ(n): 6739200
- Sum of proper divisors (its aliquot sum) s(n): 4741560
- 1997640 is an abundant number, because the sum of its proper divisors (4741560) is greater than itself. Its abundance is 2743920
Bases of 1997640
- Binary: 1111001111011010010002
- Hexadecimal: 0x1E7B48
- Base-36: 16TE0
Squares and roots of 1997640
- 1997640 squared (19976402) is 3990565569600
- 1997640 cubed (19976403) is 7971713404455744000
-
The
square root of 1997640 is 1413.3789300821 -
The
cube root of 1997640 is 125.9425285897
Scales and comparisons
How big is 1997640?- 1,997,640 seconds is equal to 3 weeks, 2 days, 2 hours, 54 minutes.
-
To count from 1 to 1,997,640 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 1997640 cubic inches would be around 10.5 feet tall.
Recreational maths with 1997640
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The information we have on file for 1997640 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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