40728009
40,728,009 is an odd composite number composed of six prime numbers multiplied together.
40728009 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 40728009:
3 × 7 × 23 × 37 × 43 × 53
See below for interesting mathematical facts about the number 40728009 from the Numbermatics database.
Names of 40728009
- Cardinal: 40728009 can be written as Forty million, seven hundred twenty-eight thousand and nine.
Scientific notation
- Scientific notation: 4.0728009 × 107
Factors of 40728009
Divisors of 40728009
- Number of divisors d(n): 64
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Complete list of divisors:
1 3 7 21 23 37 43 53 69 111 129 159 161 259 301 371 483 777 851 903 989 1113 1219 1591 1961 2279 2553 2967 3657 4773 5883 5957 6837 6923 8533 11137 13727 15953 17871 20769 25599 33411 36593 41181 45103 47859 52417 84323 109779 135309 157251 252969 256151 315721 366919 590261 768453 947163 1100757 1770783 1939429 5818287 13576003 40728009
- Sum of all divisors σ(n): 69341184
- Sum of proper divisors (its aliquot sum) s(n): 28613175
- 40728009 is a deficient number, because the sum of its proper divisors (28613175) is less than itself. Its deficiency is 12114834
Bases of 40728009
- Binary: 100110110101110101110010012
- Hexadecimal: 0x26D75C9
- Base-36: O8XXL
Squares and roots of 40728009
- 40728009 squared (407280092) is 1658770717104081
- 40728009 cubed (407280093) is 67558428695151464904729
-
The
square root of 40728009 is 6381.8499668981 -
The
cube root of 40728009 is 344.0575242949
Scales and comparisons
How big is 40728009?- 40,728,009 seconds is equal to 1 year, 15 weeks, 2 days, 9 hours, 20 minutes, 9 seconds.
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To count from 1 to 40,728,009 would take you about forty-nine 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 40728009 cubic inches would be around 28.7 feet tall.
Recreational maths with 40728009
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The information we have on file for 40728009 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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