145137540
145,137,540 is an even composite number composed of five prime numbers multiplied together.
145137540 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 145137540:
22 × 3 × 5 × 412 × 1439
(2 × 2 × 3 × 5 × 41 × 41 × 1439)See below for interesting mathematical facts about the number 145137540 from the Numbermatics database.
Names of 145137540
- Cardinal: 145137540 can be written as One hundred forty-five million, one hundred thirty-seven thousand, five hundred forty.
Scientific notation
- Scientific notation: 1.4513754 × 108
Factors of 145137540
Divisors of 145137540
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 492 615 820 1230 1439 1681 2460 2878 3362 4317 5043 5756 6724 7195 8405 8634 10086 14390 16810 17268 20172 21585 25215 28780 33620 43170 50430 58999 86340 100860 117998 176997 235996 294995 353994 589990 707988 884985 1179980 1769970 2418959 3539940 4837918 7256877 9675836 12094795 14513754 24189590 29027508 36284385 48379180 72568770 145137540
- Sum of all divisors σ(n): 416828160
- Sum of proper divisors (its aliquot sum) s(n): 271690620
- 145137540 is an abundant number, because the sum of its proper divisors (271690620) is greater than itself. Its abundance is 126553080
Bases of 145137540
- Binary: 10001010011010011111100001002
- Hexadecimal: 0x8A69F84
- Base-36: 2EESUC
Squares and roots of 145137540
- 145137540 squared (1451375402) is 21064905517251600
- 145137540 cubed (1451375403) is 3057308567106324785064000
-
The
square root of 145137540 is 12047.3042627801 -
The
cube root of 145137540 is 525.5248447501
Scales and comparisons
How big is 145137540?- 145,137,540 seconds is equal to 4 years, 31 weeks, 6 days, 19 hours, 59 minutes.
-
To count from 1 to 145,137,540 would take you about six 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 145137540 cubic inches would be around 43.8 feet tall.
Recreational maths with 145137540
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