145489820
145,489,820 is an even composite number composed of five prime numbers multiplied together.
145489820 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 145489820:
22 × 5 × 72 × 31 × 4789
(2 × 2 × 5 × 7 × 7 × 31 × 4789)See below for interesting mathematical facts about the number 145489820 from the Numbermatics database.
Names of 145489820
- Cardinal: 145489820 can be written as One hundred forty-five million, four hundred eighty-nine thousand, eight hundred twenty.
Scientific notation
- Scientific notation: 1.4548982 × 108
Factors of 145489820
Divisors of 145489820
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 5 7 10 14 20 28 31 35 49 62 70 98 124 140 155 196 217 245 310 434 490 620 868 980 1085 1519 2170 3038 4340 4789 6076 7595 9578 15190 19156 23945 30380 33523 47890 67046 95780 134092 148459 167615 234661 296918 335230 469322 593836 670460 742295 938644 1039213 1173305 1484590 2078426 2346610 2969180 4156852 4693220 5196065 7274491 10392130 14548982 20784260 29097964 36372455 72744910 145489820
- Sum of all divisors σ(n): 366952320
- Sum of proper divisors (its aliquot sum) s(n): 221462500
- 145489820 is an abundant number, because the sum of its proper divisors (221462500) is greater than itself. Its abundance is 75972680
Bases of 145489820
- Binary: 10001010101111111111100111002
- Hexadecimal: 0x8ABFF9C
- Base-36: 2EMCNW
Squares and roots of 145489820
- 145489820 squared (1454898202) is 21167287723632400
- 145489820 cubed (1454898203) is 3079624880799487622168000
-
The
square root of 145489820 is 12061.9160998575 -
The
cube root of 145489820 is 525.9496884511
Scales and comparisons
How big is 145489820?- 145,489,820 seconds is equal to 4 years, 32 weeks, 3 days, 21 hours, 50 minutes, 20 seconds.
-
To count from 1 to 145,489,820 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 145489820 cubic inches would be around 43.8 feet tall.
Recreational maths with 145489820
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The information we have on file for 145489820 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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