138345405
138,345,405 is an odd composite number composed of seven prime numbers multiplied together.
138345405 is an odd composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 138345405:
3 × 5 × 11 × 17 × 31 × 37 × 43
See below for interesting mathematical facts about the number 138345405 from the Numbermatics database.
Names of 138345405
- Cardinal: 138345405 can be written as One hundred thirty-eight million, three hundred forty-five thousand, four hundred five.
Scientific notation
- Scientific notation: 1.38345405 × 108
Factors of 138345405
Divisors of 138345405
- Number of divisors d(n): 128
-
Complete list of divisors:
1 3 5 11 15 17 31 33 37 43 51 55 85 93 111 129 155 165 185 187 215 255 341 407 465 473 527 555 561 629 645 731 935 1023 1147 1221 1333 1419 1581 1591 1705 1887 2035 2193 2365 2635 2805 3145 3441 3655 3999 4773 5115 5735 5797 6105 6665 6919 7095 7905 7955 8041 9435 10965 12617 14663 17205 17391 17501 19499 19995 20757 22661 23865 24123 27047 28985 34595 37851 40205 43989 49321 52503 58497 63085 67983 73315 81141 86955 87505 97495 103785 113305 120615 135235 147963 189255 214489 219945 246605 249271 262515 292485 297517 339915 405705 542531 643467 739815 747813 838457 892551 1072445 1246355 1487585 1627593 2515371 2712655 3217335 3739065 4192285 4462755 8137965 9223027 12576855 27669081 46115135 138345405
- Sum of all divisors σ(n): 277364736
- Sum of proper divisors (its aliquot sum) s(n): 139019331
- 138345405 is an abundant number, because the sum of its proper divisors (139019331) is greater than itself. Its abundance is 673926
Bases of 138345405
- Binary: 10000011111011111011101111012
- Hexadecimal: 0x83EFBBD
- Base-36: 2AD7ZX
Squares and roots of 138345405
- 138345405 squared (1383454052) is 19139451084614025
- 138345405 cubed (1383454053) is 2647855111778616557305125
-
The
square root of 138345405 is 11762.0323498959 -
The
cube root of 138345405 is 517.1957089967
Scales and comparisons
How big is 138345405?- 138,345,405 seconds is equal to 4 years, 20 weeks, 5 days, 5 hours, 16 minutes, 45 seconds.
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To count from 1 to 138,345,405 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 138345405 cubic inches would be around 43.1 feet tall.
Recreational maths with 138345405
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The information we have on file for 138345405 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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