13209720
13,209,720 is an even composite number composed of six prime numbers multiplied together.
13209720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 13209720:
23 × 3 × 5 × 31 × 53 × 67
(2 × 2 × 2 × 3 × 5 × 31 × 53 × 67)See below for interesting mathematical facts about the number 13209720 from the Numbermatics database.
Names of 13209720
- Cardinal: 13209720 can be written as Thirteen million, two hundred nine thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.320972 × 107
Factors of 13209720
Divisors of 13209720
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 20 24 30 31 40 53 60 62 67 93 106 120 124 134 155 159 186 201 212 248 265 268 310 318 335 372 402 424 465 530 536 620 636 670 744 795 804 930 1005 1060 1240 1272 1340 1590 1608 1643 1860 2010 2077 2120 2680 3180 3286 3551 3720 4020 4154 4929 6231 6360 6572 7102 8040 8215 8308 9858 10385 10653 12462 13144 14204 16430 16616 17755 19716 20770 21306 24645 24924 28408 31155 32860 35510 39432 41540 42612 49290 49848 53265 62310 65720 71020 83080 85224 98580 106530 110081 124620 142040 197160 213060 220162 249240 330243 426120 440324 550405 660486 880648 1100810 1320972 1651215 2201620 2641944 3302430 4403240 6604860 13209720
- Sum of all divisors σ(n): 42301440
- Sum of proper divisors (its aliquot sum) s(n): 29091720
- 13209720 is an abundant number, because the sum of its proper divisors (29091720) is greater than itself. Its abundance is 15882000
Bases of 13209720
- Binary: 1100100110010000011110002
- Hexadecimal: 0xC99078
- Base-36: 7V4OO
Squares and roots of 13209720
- 13209720 squared (132097202) is 174496702478400
- 13209720 cubed (132097203) is 2305052580662970048000
-
The
square root of 13209720 is 3634.5178497291 -
The
cube root of 13209720 is 236.3911449067
Scales and comparisons
How big is 13209720?- 13,209,720 seconds is equal to 21 weeks, 5 days, 21 hours, 22 minutes.
-
To count from 1 to 13,209,720 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 13209720 cubic inches would be around 19.7 feet tall.
Recreational maths with 13209720
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