40128256
40,128,256 is an even composite number composed of three prime numbers multiplied together.
40128256 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 40128256:
28 × 73 × 457
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 7 × 7 × 457)See below for interesting mathematical facts about the number 40128256 from the Numbermatics database.
Names of 40128256
- Cardinal: 40128256 can be written as Forty million, one hundred twenty-eight thousand, two hundred fifty-six.
Scientific notation
- Scientific notation: 4.0128256 × 107
Factors of 40128256
Divisors of 40128256
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 343 392 448 457 686 784 896 914 1372 1568 1792 1828 2744 3136 3199 3656 5488 6272 6398 7312 10976 12544 12796 14624 21952 22393 25592 29248 43904 44786 51184 58496 87808 89572 102368 116992 156751 179144 204736 313502 358288 409472 627004 716576 818944 1254008 1433152 2508016 2866304 5016032 5732608 10032064 20064128 40128256
- Sum of all divisors σ(n): 93615200
- Sum of proper divisors (its aliquot sum) s(n): 53486944
- 40128256 is an abundant number, because the sum of its proper divisors (53486944) is greater than itself. Its abundance is 13358688
Bases of 40128256
- Binary: 100110010001001111000000002
- Hexadecimal: 0x2644F00
- Base-36: NW35S
Squares and roots of 40128256
- 40128256 squared (401282562) is 1610276929601536
- 40128256 cubed (401282563) is 64617604861944414601216
-
The
square root of 40128256 is 6334.6867325859 -
The
cube root of 40128256 is 342.3603238155
Scales and comparisons
How big is 40128256?- 40,128,256 seconds is equal to 1 year, 14 weeks, 2 days, 10 hours, 44 minutes, 16 seconds.
-
To count from 1 to 40,128,256 would take you about forty-seven 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 40128256 cubic inches would be around 28.5 feet tall.
Recreational maths with 40128256
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