138940450
138,940,450 is an even composite number composed of six prime numbers multiplied together.
138940450 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 138940450:
2 × 52 × 11 × 29 × 31 × 281
(2 × 5 × 5 × 11 × 29 × 31 × 281)See below for interesting mathematical facts about the number 138940450 from the Numbermatics database.
Names of 138940450
- Cardinal: 138940450 can be written as One hundred thirty-eight million, nine hundred forty thousand, four hundred fifty.
Scientific notation
- Scientific notation: 1.3894045 × 108
Factors of 138940450
Divisors of 138940450
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 5 10 11 22 25 29 31 50 55 58 62 110 145 155 275 281 290 310 319 341 550 562 638 682 725 775 899 1405 1450 1550 1595 1705 1798 2810 3091 3190 3410 4495 6182 7025 7975 8149 8525 8711 8990 9889 14050 15455 15950 16298 17050 17422 19778 22475 30910 40745 43555 44950 49445 77275 81490 87110 89639 95821 98890 154550 179278 191642 203725 217775 247225 252619 407450 435550 448195 479105 494450 505238 896390 958210 1263095 2240975 2395525 2526190 2778809 4481950 4791050 5557618 6315475 12630950 13894045 27788090 69470225 138940450
- Sum of all divisors σ(n): 302123520
- Sum of proper divisors (its aliquot sum) s(n): 163183070
- 138940450 is an abundant number, because the sum of its proper divisors (163183070) is greater than itself. Its abundance is 24242620
Bases of 138940450
- Binary: 10000100100000010000001000102
- Hexadecimal: 0x8481022
- Base-36: 2APZ4Y
Squares and roots of 138940450
- 138940450 squared (1389404502) is 19304448646202500
- 138940450 cubed (1389404503) is 2682168781905266141125000
-
The
square root of 138940450 is 11787.3003694655 -
The
cube root of 138940450 is 517.9361613411
Scales and comparisons
How big is 138940450?- 138,940,450 seconds is equal to 4 years, 21 weeks, 5 days, 2 hours, 34 minutes, 10 seconds.
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To count from 1 to 138,940,450 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 138940450 cubic inches would be around 43.2 feet tall.
Recreational maths with 138940450
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