385747920
385,747,920 is an even composite number composed of four prime numbers multiplied together.
385747920 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 385747920:
24 × 35 × 5 × 19843
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 19843)See below for interesting mathematical facts about the number 385747920 from the Numbermatics database.
Names of 385747920
- Cardinal: 385747920 can be written as Three hundred eighty-five million, seven hundred forty-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 3.8574792 × 108
Factors of 385747920
Divisors of 385747920
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 81 90 108 120 135 144 162 180 216 240 243 270 324 360 405 432 486 540 648 720 810 972 1080 1215 1296 1620 1944 2160 2430 3240 3888 4860 6480 9720 19440 19843 39686 59529 79372 99215 119058 158744 178587 198430 238116 297645 317488 357174 396860 476232 535761 595290 714348 793720 892935 952464 1071522 1190580 1428696 1587440 1607283 1785870 2143044 2381160 2678805 2857392 3214566 3571740 4286088 4762320 4821849 5357610 6429132 7143480 8036415 8572176 9643698 10715220 12858264 14286960 16072830 19287396 21430440 24109245 25716528 32145660 38574792 42860880 48218490 64291320 77149584 96436980 128582640 192873960 385747920
- Sum of all divisors σ(n): 1343518176
- Sum of proper divisors (its aliquot sum) s(n): 957770256
- 385747920 is an abundant number, because the sum of its proper divisors (957770256) is greater than itself. Its abundance is 572022336
Bases of 385747920
- Binary: 101101111111000001011110100002
- Hexadecimal: 0x16FE0BD0
- Base-36: 6DNX00
Squares and roots of 385747920
- 385747920 squared (3857479202) is 148801457784326400
- 385747920 cubed (3857479203) is 57399852833271717401088000
-
The
square root of 385747920 is 19640.4663895745 -
The
cube root of 385747920 is 727.9494087937
Scales and comparisons
How big is 385747920?- 385,747,920 seconds is equal to 12 years, 13 weeks, 5 days, 16 hours, 12 minutes.
-
To count from 1 to 385,747,920 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 385747920 cubic inches would be around 60.7 feet tall.
Recreational maths with 385747920
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