138521240
138,521,240 is an even composite number composed of six prime numbers multiplied together.
138521240 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 138521240:
23 × 5 × 11 × 13 × 61 × 397
(2 × 2 × 2 × 5 × 11 × 13 × 61 × 397)See below for interesting mathematical facts about the number 138521240 from the Numbermatics database.
Names of 138521240
- Cardinal: 138521240 can be written as One hundred thirty-eight million, five hundred twenty-one thousand, two hundred forty.
Scientific notation
- Scientific notation: 1.3852124 × 108
Factors of 138521240
Divisors of 138521240
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 4 5 8 10 11 13 20 22 26 40 44 52 55 61 65 88 104 110 122 130 143 220 244 260 286 305 397 440 488 520 572 610 671 715 793 794 1144 1220 1342 1430 1586 1588 1985 2440 2684 2860 3172 3176 3355 3965 3970 4367 5161 5368 5720 6344 6710 7930 7940 8723 8734 10322 13420 15860 15880 17446 17468 20644 21835 24217 25805 26840 31720 34892 34936 41288 43615 43670 48434 51610 56771 69784 87230 87340 96868 103220 113542 121085 174460 174680 193736 206440 227084 242170 266387 283855 314821 348920 454168 484340 532774 567710 629642 968680 1065548 1135420 1259284 1331935 1574105 2131096 2270840 2518568 2663870 3148210 3463031 5327740 6296420 6926062 10655480 12592840 13852124 17315155 27704248 34630310 69260620 138521240
- Sum of all divisors σ(n): 373101120
- Sum of proper divisors (its aliquot sum) s(n): 234579880
- 138521240 is an abundant number, because the sum of its proper divisors (234579880) is greater than itself. Its abundance is 96058640
Bases of 138521240
- Binary: 10000100000110101010100110002
- Hexadecimal: 0x841AA98
- Base-36: 2AGZO8
Squares and roots of 138521240
- 138521240 squared (1385212402) is 19188133931137600
- 138521240 cubed (1385212403) is 2657964105427254962624000
-
The
square root of 138521240 is 11769.5046624741 -
The
cube root of 138521240 is 517.4147323087
Scales and comparisons
How big is 138521240?- 138,521,240 seconds is equal to 4 years, 21 weeks, 6 hours, 7 minutes, 20 seconds.
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To count from 1 to 138,521,240 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 138521240 cubic inches would be around 43.1 feet tall.
Recreational maths with 138521240
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The information we have on file for 138521240 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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