12705990
12,705,990 is an even composite number composed of six prime numbers multiplied together.
12705990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 12705990:
2 × 3 × 5 × 11 × 139 × 277
See below for interesting mathematical facts about the number 12705990 from the Numbermatics database.
Names of 12705990
- Cardinal: 12705990 can be written as Twelve million, seven hundred five thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.270599 × 107
Factors of 12705990
Divisors of 12705990
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 11 15 22 30 33 55 66 110 139 165 277 278 330 417 554 695 831 834 1385 1390 1529 1662 2085 2770 3047 3058 4155 4170 4587 6094 7645 8310 9141 9174 15235 15290 18282 22935 30470 38503 45705 45870 77006 91410 115509 192515 231018 385030 423533 577545 847066 1155090 1270599 2117665 2541198 4235330 6352995 12705990
- Sum of all divisors σ(n): 33626880
- Sum of proper divisors (its aliquot sum) s(n): 20920890
- 12705990 is an abundant number, because the sum of its proper divisors (20920890) is greater than itself. Its abundance is 8214900
Bases of 12705990
- Binary: 1100000111100000110001102
- Hexadecimal: 0xC1E0C6
- Base-36: 7KC06
Squares and roots of 12705990
- 12705990 squared (127059902) is 161442181880100
- 12705990 cubed (127059903) is 2051282748546731799000
-
The
square root of 12705990 is 3564.5462544341 -
The
cube root of 12705990 is 233.3473302261
Scales and comparisons
How big is 12705990?- 12,705,990 seconds is equal to 21 weeks, 1 hour, 26 minutes, 30 seconds.
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To count from 1 to 12,705,990 would take you about thirty-one 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 12705990 cubic inches would be around 19.4 feet tall.
Recreational maths with 12705990
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The information we have on file for 12705990 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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