640139264
640,139,264 is an even composite number composed of three prime numbers multiplied together.
640139264 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 640139264:
214 × 89 × 439
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 89 × 439)See below for interesting mathematical facts about the number 640139264 from the Numbermatics database.
Names of 640139264
- Cardinal: 640139264 can be written as Six hundred forty million, one hundred thirty-nine thousand, two hundred sixty-four.
Scientific notation
- Scientific notation: 6.40139264 × 108
Factors of 640139264
Divisors of 640139264
- Number of divisors d(n): 60
-
Complete list of divisors:
1 2 4 8 16 32 64 89 128 178 256 356 439 512 712 878 1024 1424 1756 2048 2848 3512 4096 5696 7024 8192 11392 14048 16384 22784 28096 39071 45568 56192 78142 91136 112384 156284 182272 224768 312568 364544 449536 625136 729088 899072 1250272 1458176 1798144 2500544 3596288 5001088 7192576 10002176 20004352 40008704 80017408 160034816 320069632 640139264
- Sum of all divisors σ(n): 1297573200
- Sum of proper divisors (its aliquot sum) s(n): 657433936
- 640139264 is an abundant number, because the sum of its proper divisors (657433936) is greater than itself. Its abundance is 17294672
Bases of 640139264
- Binary: 1001100010011111000000000000002
- Hexadecimal: 0x2627C000
- Base-36: AL4EM8
Squares and roots of 640139264
- 640139264 squared (6401392642) is 409778277314461696
- 640139264 cubed (6401392643) is 262315164843267406633631744
-
The
square root of 640139264 is 25300.9735781057 -
The
cube root of 640139264 is 861.8363788113
Scales and comparisons
How big is 640139264?- 640,139,264 seconds is equal to 20 years, 18 weeks, 3 days, 27 minutes, 44 seconds.
-
To count from 1 to 640,139,264 would take you about thirty years!
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 640139264 cubic inches would be around 71.8 feet tall.
Recreational maths with 640139264
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