128138736
128,138,736 is an even composite number composed of six prime numbers multiplied together.
128138736 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 128138736:
24 × 3 × 11 × 19 × 53 × 241
(2 × 2 × 2 × 2 × 3 × 11 × 19 × 53 × 241)See below for interesting mathematical facts about the number 128138736 from the Numbermatics database.
Names of 128138736
- Cardinal: 128138736 can be written as One hundred twenty-eight million, one hundred thirty-eight thousand, seven hundred thirty-six.
Scientific notation
- Scientific notation: 1.28138736 × 108
Factors of 128138736
Divisors of 128138736
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 4 6 8 11 12 16 19 22 24 33 38 44 48 53 57 66 76 88 106 114 132 152 159 176 209 212 228 241 264 304 318 418 424 456 482 528 583 627 636 723 836 848 912 964 1007 1166 1254 1272 1446 1672 1749 1928 2014 2332 2508 2544 2651 2892 3021 3344 3498 3856 4028 4579 4664 5016 5302 5784 6042 6996 7953 8056 9158 9328 10032 10604 11077 11568 12084 12773 13737 13992 15906 16112 18316 21208 22154 24168 25546 27474 27984 31812 33231 36632 38319 42416 44308 48336 50369 51092 54948 63624 66462 73264 76638 88616 100738 102184 109896 127248 132924 140503 151107 153276 177232 201476 204368 219792 242687 265848 281006 302214 306552 402952 421509 485374 531696 562012 604428 613104 728061 805904 843018 970748 1124024 1208856 1456122 1686036 1941496 2248048 2417712 2669557 2912244 3372072 3882992 5339114 5824488 6744144 8008671 10678228 11648976 16017342 21356456 32034684 42712912 64069368 128138736
- Sum of all divisors σ(n): 388903680
- Sum of proper divisors (its aliquot sum) s(n): 260764944
- 128138736 is an abundant number, because the sum of its proper divisors (260764944) is greater than itself. Its abundance is 132626208
Bases of 128138736
- Binary: 1111010001100111101111100002
- Hexadecimal: 0x7A33DF0
- Base-36: 24AGHC
Squares and roots of 128138736
- 128138736 squared (1281387362) is 16419535663677696
- 128138736 cubed (1281387363) is 2103978545650581076832256
-
The
square root of 128138736 is 11319.8381613873 -
The
cube root of 128138736 is 504.1504338041
Scales and comparisons
How big is 128138736?- 128,138,736 seconds is equal to 4 years, 3 weeks, 6 days, 2 hours, 5 minutes, 36 seconds.
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To count from 1 to 128,138,736 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 128138736 cubic inches would be around 42 feet tall.
Recreational maths with 128138736
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