642663125
642,663,125 is an odd composite number composed of five prime numbers multiplied together.
642663125 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 642663125:
54 × 13 × 19 × 23 × 181
(5 × 5 × 5 × 5 × 13 × 19 × 23 × 181)See below for interesting mathematical facts about the number 642663125 from the Numbermatics database.
Names of 642663125
- Cardinal: 642663125 can be written as Six hundred forty-two million, six hundred sixty-three thousand, one hundred twenty-five.
Scientific notation
- Scientific notation: 6.42663125 × 108
Factors of 642663125
Divisors of 642663125
- Number of divisors d(n): 80
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Complete list of divisors:
1 5 13 19 23 25 65 95 115 125 181 247 299 325 437 475 575 625 905 1235 1495 1625 2185 2353 2375 2875 3439 4163 4525 5681 6175 7475 8125 10925 11765 11875 14375 17195 20815 22625 28405 30875 37375 44707 54119 54625 58825 79097 85975 104075 113125 142025 154375 186875 223535 270595 273125 294125 395485 429875 520375 710125 1028261 1117675 1352975 1470625 1977425 2149375 2601875 3550625 5141305 5588375 6764875 9887125 25706525 27941875 33824375 49435625 128532625 642663125
- Sum of all divisors σ(n): 955194240
- Sum of proper divisors (its aliquot sum) s(n): 312531115
- 642663125 is a deficient number, because the sum of its proper divisors (312531115) is less than itself. Its deficiency is 330132010
Bases of 642663125
- Binary: 1001100100111001000010110101012
- Hexadecimal: 0x264E42D5
- Base-36: AMMI1H
Squares and roots of 642663125
- 642663125 squared (6426631252) is 413015892234765625
- 642663125 cubed (6426631253) is 265430083978257710205078125
-
The
square root of 642663125 is 25350.8012693879 -
The
cube root of 642663125 is 862.9675403927
Scales and comparisons
How big is 642663125?- 642,663,125 seconds is equal to 20 years, 22 weeks, 4 days, 5 hours, 32 minutes, 5 seconds.
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To count from 1 to 642,663,125 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 642663125 cubic inches would be around 71.9 feet tall.
Recreational maths with 642663125
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