385609640
385,609,640 is an even composite number composed of six prime numbers multiplied together.
385609640 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 385609640:
23 × 5 × 13 × 17 × 181 × 241
(2 × 2 × 2 × 5 × 13 × 17 × 181 × 241)See below for interesting mathematical facts about the number 385609640 from the Numbermatics database.
Names of 385609640
- Cardinal: 385609640 can be written as Three hundred eighty-five million, six hundred nine thousand, six hundred forty.
Scientific notation
- Scientific notation: 3.8560964 × 108
Factors of 385609640
Divisors of 385609640
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 4 5 8 10 13 17 20 26 34 40 52 65 68 85 104 130 136 170 181 221 241 260 340 362 442 482 520 680 724 884 905 964 1105 1205 1448 1768 1810 1928 2210 2353 2410 3077 3133 3620 4097 4420 4706 4820 6154 6266 7240 8194 8840 9412 9640 11765 12308 12532 15385 15665 16388 18824 20485 23530 24616 25064 30770 31330 32776 40001 40970 43621 47060 53261 61540 62660 80002 81940 87242 94120 106522 123080 125320 160004 163880 174484 200005 213044 218105 266305 320008 348968 400010 426088 436210 532610 567073 741557 800020 872420 1065220 1134146 1483114 1600040 1744840 2130440 2268292 2835365 2966228 3707785 4536584 5670730 5932456 7415570 9640241 11341460 14831140 19280482 22682920 29662280 38560964 48201205 77121928 96402410 192804820 385609640
- Sum of all divisors σ(n): 998917920
- Sum of proper divisors (its aliquot sum) s(n): 613308280
- 385609640 is an abundant number, because the sum of its proper divisors (613308280) is greater than itself. Its abundance is 227698640
Bases of 385609640
- Binary: 101101111101111101111101010002
- Hexadecimal: 0x16FBEFA8
- Base-36: 6DKYAW
Squares and roots of 385609640
- 385609640 squared (3856096402) is 148694794460929600
- 385609640 cubed (3856096403) is 57338146161953057121344000
-
The
square root of 385609640 is 19636.9457910339 -
The
cube root of 385609640 is 727.8624151297
Scales and comparisons
How big is 385609640?- 385,609,640 seconds is equal to 12 years, 13 weeks, 4 days, 1 hour, 47 minutes, 20 seconds.
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To count from 1 to 385,609,640 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 385609640 cubic inches would be around 60.7 feet tall.
Recreational maths with 385609640
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