66438125
66,438,125 is an odd composite number composed of four prime numbers multiplied together.
66438125 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 66438125:
54 × 132 × 17 × 37
(5 × 5 × 5 × 5 × 13 × 13 × 17 × 37)See below for interesting mathematical facts about the number 66438125 from the Numbermatics database.
Names of 66438125
- Cardinal: 66438125 can be written as Sixty-six million, four hundred thirty-eight thousand, one hundred twenty-five.
Scientific notation
- Scientific notation: 6.6438125 × 107
Factors of 66438125
Divisors of 66438125
- Number of divisors d(n): 60
-
Complete list of divisors:
1 5 13 17 25 37 65 85 125 169 185 221 325 425 481 625 629 845 925 1105 1625 2125 2405 2873 3145 4225 4625 5525 6253 8125 8177 10625 12025 14365 15725 21125 23125 27625 31265 40885 60125 71825 78625 105625 106301 138125 156325 204425 300625 359125 393125 531505 781625 1022125 1795625 2657525 3908125 5110625 13287625 66438125
- Sum of all divisors σ(n): 97759332
- Sum of proper divisors (its aliquot sum) s(n): 31321207
- 66438125 is a deficient number, because the sum of its proper divisors (31321207) is less than itself. Its deficiency is 35116918
Bases of 66438125
- Binary: 111111010111000011111011012
- Hexadecimal: 0x3F5C3ED
- Base-36: 13JZZH
Squares and roots of 66438125
- 66438125 squared (664381252) is 4414024453515625
- 66438125 cubed (664381253) is 293259508395727783203125
-
The
square root of 66438125 is 8150.9585325899 -
The
cube root of 66438125 is 405.0162570317
Scales and comparisons
How big is 66438125?- 66,438,125 seconds is equal to 2 years, 5 weeks, 5 days, 23 hours, 2 minutes, 5 seconds.
-
To count from 1 to 66,438,125 would take you about three 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 66438125 cubic inches would be around 33.8 feet tall.
Recreational maths with 66438125
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