642627128
642,627,128 is an even composite number composed of five prime numbers multiplied together.
642627128 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 642627128:
23 × 112 × 13 × 223 × 229
(2 × 2 × 2 × 11 × 11 × 13 × 223 × 229)See below for interesting mathematical facts about the number 642627128 from the Numbermatics database.
Names of 642627128
- Cardinal: 642627128 can be written as Six hundred forty-two million, six hundred twenty-seven thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 6.42627128 × 108
Factors of 642627128
Divisors of 642627128
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 4 8 11 13 22 26 44 52 88 104 121 143 223 229 242 286 446 458 484 572 892 916 968 1144 1573 1784 1832 2453 2519 2899 2977 3146 4906 5038 5798 5954 6292 9812 10076 11596 11908 12584 19624 20152 23192 23816 26983 27709 31889 32747 51067 53966 55418 63778 65494 102134 107932 110836 127556 130988 204268 215864 221672 255112 261976 350779 360217 408536 561737 663871 701558 720434 1123474 1327742 1403116 1440868 2246948 2655484 2806232 2881736 4493896 5310968 6179107 7302581 12358214 14605162 24716428 29210324 49432856 58420648 80328391 160656782 321313564 642627128
- Sum of all divisors σ(n): 1438953600
- Sum of proper divisors (its aliquot sum) s(n): 796326472
- 642627128 is an abundant number, because the sum of its proper divisors (796326472) is greater than itself. Its abundance is 153699344
Bases of 642627128
- Binary: 1001100100110110110110001110002
- Hexadecimal: 0x264DB638
- Base-36: AMLQ9K
Squares and roots of 642627128
- 642627128 squared (6426271282) is 412969625641528384
- 642627128 cubed (6426271283) is 265385484477250542940401152
-
The
square root of 642627128 is 25350.0912818871 -
The
cube root of 642627128 is 862.9514278441
Scales and comparisons
How big is 642627128?- 642,627,128 seconds is equal to 20 years, 22 weeks, 3 days, 19 hours, 32 minutes, 8 seconds.
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To count from 1 to 642,627,128 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 642627128 cubic inches would be around 71.9 feet tall.
Recreational maths with 642627128
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