381420
381,420 is an even composite number composed of five prime numbers multiplied together.
381420 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 381420:
22 × 32 × 5 × 13 × 163
(2 × 2 × 3 × 3 × 5 × 13 × 163)See below for interesting mathematical facts about the number 381420 from the Numbermatics database.
Names of 381420
- Cardinal: 381420 can be written as Three hundred eighty-one thousand, four hundred twenty.
Scientific notation
- Scientific notation: 3.8142 × 105
Factors of 381420
Divisors of 381420
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 163 180 195 234 260 326 390 468 489 585 652 780 815 978 1170 1467 1630 1956 2119 2340 2445 2934 3260 4238 4890 5868 6357 7335 8476 9780 10595 12714 14670 19071 21190 25428 29340 31785 38142 42380 63570 76284 95355 127140 190710 381420
- Sum of all divisors σ(n): 1253616
- Sum of proper divisors (its aliquot sum) s(n): 872196
- 381420 is an abundant number, because the sum of its proper divisors (872196) is greater than itself. Its abundance is 490776
Bases of 381420
- Binary: 10111010001111011002
- Hexadecimal: 0x5D1EC
- Base-36: 86B0
Squares and roots of 381420
- 381420 squared (3814202) is 145481216400
- 381420 cubed (3814203) is 55489445559288000
-
The
square root of 381420 is 617.5920983951 -
The
cube root of 381420 is 72.5216740589
Scales and comparisons
How big is 381420?- 381,420 seconds is equal to 4 days, 9 hours, 57 minutes.
-
To count from 1 to 381,420 would take you about four days.
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 381420 cubic inches would be around 6 feet tall.
Recreational maths with 381420
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The information we have on file for 381420 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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