13181220
13,181,220 is an even composite number composed of six prime numbers multiplied together.
13181220 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 13181220:
22 × 32 × 5 × 13 × 43 × 131
(2 × 2 × 3 × 3 × 5 × 13 × 43 × 131)See below for interesting mathematical facts about the number 13181220 from the Numbermatics database.
Names of 13181220
- Cardinal: 13181220 can be written as Thirteen million, one hundred eighty-one thousand, two hundred twenty.
Scientific notation
- Scientific notation: 1.318122 × 107
Factors of 13181220
Divisors of 13181220
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 43 45 52 60 65 78 86 90 117 129 130 131 156 172 180 195 215 234 258 260 262 387 390 393 430 468 516 524 559 585 645 655 774 780 786 860 1118 1170 1179 1290 1310 1548 1572 1677 1703 1935 1965 2236 2340 2358 2580 2620 2795 3354 3406 3870 3930 4716 5031 5109 5590 5633 5895 6708 6812 7740 7860 8385 8515 10062 10218 11180 11266 11790 15327 16770 16899 17030 20124 20436 22532 23580 25155 25545 28165 30654 33540 33798 34060 50310 50697 51090 56330 61308 67596 73229 76635 84495 100620 101394 102180 112660 146458 153270 168990 202788 219687 253485 292916 306540 337980 366145 439374 506970 659061 732290 878748 1013940 1098435 1318122 1464580 2196870 2636244 3295305 4393740 6590610 13181220
- Sum of all divisors σ(n): 44396352
- Sum of proper divisors (its aliquot sum) s(n): 31215132
- 13181220 is an abundant number, because the sum of its proper divisors (31215132) is greater than itself. Its abundance is 18033912
Bases of 13181220
- Binary: 1100100100100001001001002
- Hexadecimal: 0xC92124
- Base-36: 7UIP0
Squares and roots of 13181220
- 13181220 squared (131812202) is 173744560688400
- 13181220 cubed (131812203) is 2290165278237151848000
-
The
square root of 13181220 is 3630.5949925597 -
The
cube root of 13181220 is 236.2210176927
Scales and comparisons
How big is 13181220?- 13,181,220 seconds is equal to 21 weeks, 5 days, 13 hours, 27 minutes.
-
To count from 1 to 13,181,220 would take you about thirty-two 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 13181220 cubic inches would be around 19.7 feet tall.
Recreational maths with 13181220
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The information we have on file for 13181220 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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