385729920
385,729,920 is an even composite number composed of five prime numbers multiplied together.
385729920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 385729920:
27 × 32 × 5 × 167 × 401
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 167 × 401)See below for interesting mathematical facts about the number 385729920 from the Numbermatics database.
Names of 385729920
- Cardinal: 385729920 can be written as Three hundred eighty-five million, seven hundred twenty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 3.8572992 × 108
Factors of 385729920
Divisors of 385729920
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 167 180 192 240 288 320 334 360 384 401 480 501 576 640 668 720 802 835 960 1002 1152 1203 1336 1440 1503 1604 1670 1920 2004 2005 2406 2505 2672 2880 3006 3208 3340 3609 4008 4010 4812 5010 5344 5760 6012 6015 6416 6680 7218 7515 8016 8020 9624 10020 10688 12024 12030 12832 13360 14436 15030 16032 16040 18045 19248 20040 21376 24048 24060 25664 26720 28872 30060 32064 32080 36090 38496 40080 48096 48120 51328 53440 57744 60120 64128 64160 66967 72180 76992 80160 96192 96240 106880 115488 120240 128320 133934 144360 153984 160320 192384 192480 200901 230976 240480 256640 267868 288720 320640 334835 384960 401802 461952 480960 535736 577440 602703 669670 769920 803604 961920 1004505 1071472 1154880 1205406 1339340 1607208 2009010 2142944 2309760 2410812 2678680 3013515 3214416 4018020 4285888 4821624 5357360 6027030 6428832 8036040 8571776 9643248 10714720 12054060 12857664 16072080 19286496 21429440 24108120 25715328 32144160 38572992 42858880 48216240 64288320 77145984 96432480 128576640 192864960 385729920
- Sum of all divisors σ(n): 1343291040
- Sum of proper divisors (its aliquot sum) s(n): 957561120
- 385729920 is an abundant number, because the sum of its proper divisors (957561120) is greater than itself. Its abundance is 571831200
Bases of 385729920
- Binary: 101101111110111000101100000002
- Hexadecimal: 0x16FDC580
- Base-36: 6DNJ40
Squares and roots of 385729920
- 385729920 squared (3857299202) is 148787571183206400
- 385729920 cubed (3857299203) is 57391817929492510015488000
-
The
square root of 385729920 is 19640.0081466377 -
The
cube root of 385729920 is 727.9380859475
Scales and comparisons
How big is 385729920?- 385,729,920 seconds is equal to 12 years, 13 weeks, 5 days, 11 hours, 12 minutes.
-
To count from 1 to 385,729,920 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 385729920 cubic inches would be around 60.7 feet tall.
Recreational maths with 385729920
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