385188020
385,188,020 is an even composite number composed of five prime numbers multiplied together.
385188020 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 385188020:
22 × 5 × 72 × 312 × 409
(2 × 2 × 5 × 7 × 7 × 31 × 31 × 409)See below for interesting mathematical facts about the number 385188020 from the Numbermatics database.
Names of 385188020
- Cardinal: 385188020 can be written as Three hundred eighty-five million, one hundred eighty-eight thousand and twenty.
Scientific notation
- Scientific notation: 3.8518802 × 108
Factors of 385188020
Divisors of 385188020
- Number of divisors d(n): 108
-
Complete list of divisors:
1 2 4 5 7 10 14 20 28 31 35 49 62 70 98 124 140 155 196 217 245 310 409 434 490 620 818 868 961 980 1085 1519 1636 1922 2045 2170 2863 3038 3844 4090 4340 4805 5726 6076 6727 7595 8180 9610 11452 12679 13454 14315 15190 19220 20041 25358 26908 28630 30380 33635 40082 47089 50716 57260 63395 67270 80164 88753 94178 100205 126790 134540 177506 188356 200410 235445 253580 355012 393049 400820 443765 470890 621271 786098 887530 941780 1242542 1572196 1775060 1965245 2485084 2751343 3106355 3930490 5502686 6212710 7860980 11005372 12425420 13756715 19259401 27513430 38518802 55026860 77037604 96297005 192594010 385188020
- Sum of all divisors σ(n): 974669220
- Sum of proper divisors (its aliquot sum) s(n): 589481200
- 385188020 is an abundant number, because the sum of its proper divisors (589481200) is greater than itself. Its abundance is 204293180
Bases of 385188020
- Binary: 101101111010110000000101101002
- Hexadecimal: 0x16F580B4
- Base-36: 6DBWZ8
Squares and roots of 385188020
- 385188020 squared (3851880202) is 148369810751520400
- 385188020 cubed (3851880203) is 57150273631152854865608000
-
The
square root of 385188020 is 19626.2074787769 -
The
cube root of 385188020 is 727.5970403099
Scales and comparisons
How big is 385188020?- 385,188,020 seconds is equal to 12 years, 12 weeks, 6 days, 4 hours, 40 minutes, 20 seconds.
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To count from 1 to 385,188,020 would take you about eighteen 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 385188020 cubic inches would be around 60.6 feet tall.
Recreational maths with 385188020
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