128938368
128,938,368 is an even composite number composed of five prime numbers multiplied together.
128938368 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 128938368:
27 × 3 × 13 × 23 × 1123
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 13 × 23 × 1123)See below for interesting mathematical facts about the number 128938368 from the Numbermatics database.
Names of 128938368
- Cardinal: 128938368 can be written as One hundred twenty-eight million, nine hundred thirty-eight thousand, three hundred sixty-eight.
Scientific notation
- Scientific notation: 1.28938368 × 108
Factors of 128938368
Divisors of 128938368
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 6 8 12 13 16 23 24 26 32 39 46 48 52 64 69 78 92 96 104 128 138 156 184 192 208 276 299 312 368 384 416 552 598 624 736 832 897 1104 1123 1196 1248 1472 1664 1794 2208 2246 2392 2496 2944 3369 3588 4416 4492 4784 4992 6738 7176 8832 8984 9568 13476 14352 14599 17968 19136 25829 26952 28704 29198 35936 38272 43797 51658 53904 57408 58396 71872 77487 87594 103316 107808 114816 116792 143744 154974 175188 206632 215616 233584 309948 335777 350376 413264 431232 467168 619896 671554 700752 826528 934336 1007331 1239792 1343108 1401504 1653056 1868672 2014662 2479584 2686216 2803008 3306112 4029324 4959168 5372432 5606016 8058648 9918336 10744864 16117296 21489728 32234592 42979456 64469184 128938368
- Sum of all divisors σ(n): 385217280
- Sum of proper divisors (its aliquot sum) s(n): 256278912
- 128938368 is an abundant number, because the sum of its proper divisors (256278912) is greater than itself. Its abundance is 127340544
Bases of 128938368
- Binary: 1111010111101110001100000002
- Hexadecimal: 0x7AF7180
- Base-36: 24RLHC
Squares and roots of 128938368
- 128938368 squared (1289383682) is 16625102742503424
- 128938368 cubed (1289383683) is 2143613615450715724972032
-
The
square root of 128938368 is 11355.1031699409 -
The
cube root of 128938368 is 505.1969535333
Scales and comparisons
How big is 128938368?- 128,938,368 seconds is equal to 4 years, 5 weeks, 1 day, 8 hours, 12 minutes, 48 seconds.
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To count from 1 to 128,938,368 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 128938368 cubic inches would be around 42.1 feet tall.
Recreational maths with 128938368
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