385642240
385,642,240 is an even composite number composed of five prime numbers multiplied together.
385642240 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 385642240:
28 × 5 × 19 × 101 × 157
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 19 × 101 × 157)See below for interesting mathematical facts about the number 385642240 from the Numbermatics database.
Names of 385642240
- Cardinal: 385642240 can be written as Three hundred eighty-five million, six hundred forty-two thousand, two hundred forty.
Scientific notation
- Scientific notation: 3.8564224 × 108
Factors of 385642240
Divisors of 385642240
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 101 128 152 157 160 190 202 256 304 314 320 380 404 505 608 628 640 760 785 808 1010 1216 1256 1280 1520 1570 1616 1919 2020 2432 2512 2983 3040 3140 3232 3838 4040 4864 5024 5966 6080 6280 6464 7676 8080 9595 10048 11932 12160 12560 12928 14915 15352 15857 16160 19190 20096 23864 24320 25120 25856 29830 30704 31714 32320 38380 40192 47728 50240 59660 61408 63428 64640 76760 79285 95456 100480 119320 122816 126856 129280 153520 158570 190912 200960 238640 245632 253712 301283 307040 317140 381824 477280 491264 507424 602566 614080 634280 763648 954560 1014848 1205132 1228160 1268560 1506415 1909120 2029696 2410264 2456320 2537120 3012830 3818240 4059392 4820528 5074240 6025660 9641056 10148480 12051320 19282112 20296960 24102640 38564224 48205280 77128448 96410560 192821120 385642240
- Sum of all divisors σ(n): 988233120
- Sum of proper divisors (its aliquot sum) s(n): 602590880
- 385642240 is an abundant number, because the sum of its proper divisors (602590880) is greater than itself. Its abundance is 216948640
Bases of 385642240
- Binary: 101101111110001101111000000002
- Hexadecimal: 0x16FC6F00
- Base-36: 6DLNGG
Squares and roots of 385642240
- 385642240 squared (3856422402) is 148719937272217600
- 385642240 cubed (3856422403) is 57352689742317485031424000
-
The
square root of 385642240 is 19637.7758414749 -
The
cube root of 385642240 is 727.8829260677
Scales and comparisons
How big is 385642240?- 385,642,240 seconds is equal to 12 years, 13 weeks, 4 days, 10 hours, 50 minutes, 40 seconds.
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To count from 1 to 385,642,240 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 385642240 cubic inches would be around 60.7 feet tall.
Recreational maths with 385642240
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