1981980
1,981,980 is an even composite number composed of six prime numbers multiplied together.
1981980 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 1981980:
22 × 32 × 5 × 7 × 112 × 13
(2 × 2 × 3 × 3 × 5 × 7 × 11 × 11 × 13)See below for interesting mathematical facts about the number 1981980 from the Numbermatics database.
Names of 1981980
- Cardinal: 1981980 can be written as One million, nine hundred eighty-one thousand, nine hundred eighty.
Scientific notation
- Scientific notation: 1.98198 × 106
Factors of 1981980
Divisors of 1981980
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 5 6 7 9 10 11 12 13 14 15 18 20 21 22 26 28 30 33 35 36 39 42 44 45 52 55 60 63 65 66 70 77 78 84 90 91 99 105 110 117 121 126 130 132 140 143 154 156 165 180 182 195 198 210 220 231 234 242 252 260 273 286 308 315 330 363 364 385 390 396 420 429 455 462 468 484 495 546 572 585 605 630 660 693 715 726 770 780 819 847 858 910 924 990 1001 1089 1092 1155 1170 1210 1260 1287 1365 1386 1430 1452 1540 1573 1638 1694 1716 1815 1820 1980 2002 2145 2178 2310 2340 2420 2541 2574 2730 2772 2860 3003 3146 3276 3388 3465 3630 4004 4095 4235 4290 4356 4620 4719 5005 5082 5148 5445 5460 6006 6292 6435 6930 7260 7623 7865 8190 8470 8580 9009 9438 10010 10164 10890 11011 12012 12705 12870 13860 14157 15015 15246 15730 16380 16940 18018 18876 20020 21780 22022 23595 25410 25740 28314 30030 30492 31460 33033 36036 38115 44044 45045 47190 50820 55055 56628 60060 66066 70785 76230 90090 94380 99099 110110 132132 141570 152460 165165 180180 198198 220220 283140 330330 396396 495495 660660 990990 1981980
- Sum of all divisors σ(n): 8133216
- Sum of proper divisors (its aliquot sum) s(n): 6151236
- 1981980 is an abundant number, because the sum of its proper divisors (6151236) is greater than itself. Its abundance is 4169256
Bases of 1981980
- Binary: 1111000111110000111002
- Hexadecimal: 0x1E3E1C
- Base-36: 16HB0
Squares and roots of 1981980
- 1981980 squared (19819802) is 3928244720400
- 1981980 cubed (19819803) is 7785702470938392000
-
The
square root of 1981980 is 1407.8281145083 -
The
cube root of 1981980 is 125.6125665277
Scales and comparisons
How big is 1981980?- 1,981,980 seconds is equal to 3 weeks, 1 day, 22 hours, 33 minutes.
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To count from 1 to 1,981,980 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 1981980 cubic inches would be around 10.5 feet tall.
Recreational maths with 1981980
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The information we have on file for 1981980 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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