128129680
128,129,680 is an even composite number composed of six prime numbers multiplied together.
128129680 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 128129680:
24 × 5 × 7 × 17 × 43 × 313
(2 × 2 × 2 × 2 × 5 × 7 × 17 × 43 × 313)See below for interesting mathematical facts about the number 128129680 from the Numbermatics database.
Names of 128129680
- Cardinal: 128129680 can be written as One hundred twenty-eight million, one hundred twenty-nine thousand, six hundred eighty.
Scientific notation
- Scientific notation: 1.2812968 × 108
Factors of 128129680
Divisors of 128129680
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 17 20 28 34 35 40 43 56 68 70 80 85 86 112 119 136 140 170 172 215 238 272 280 301 313 340 344 430 476 560 595 602 626 680 688 731 860 952 1190 1204 1252 1360 1462 1505 1565 1720 1904 2191 2380 2408 2504 2924 3010 3130 3440 3655 4382 4760 4816 5008 5117 5321 5848 6020 6260 7310 8764 9520 10234 10642 10955 11696 12040 12520 13459 14620 17528 20468 21284 21910 24080 25040 25585 26605 26918 29240 35056 37247 40936 42568 43820 51170 53210 53836 58480 67295 74494 81872 85136 87640 94213 102340 106420 107672 134590 148988 175280 186235 188426 204680 212840 215344 228803 269180 297976 372470 376852 409360 425680 457606 471065 538360 595952 744940 753704 915212 942130 1076720 1144015 1489880 1507408 1601621 1830424 1884260 2288030 2979760 3203242 3660848 3768520 4576060 6406484 7537040 8008105 9152120 12812968 16016210 18304240 25625936 32032420 64064840 128129680
- Sum of all divisors σ(n): 370047744
- Sum of proper divisors (its aliquot sum) s(n): 241918064
- 128129680 is an abundant number, because the sum of its proper divisors (241918064) is greater than itself. Its abundance is 113788384
Bases of 128129680
- Binary: 1111010001100011010100100002
- Hexadecimal: 0x7A31A90
- Base-36: 24A9HS
Squares and roots of 128129680
- 128129680 squared (1281296802) is 16417214896902400
- 128129680 cubed (1281296803) is 2103532491231337503232000
-
The
square root of 128129680 is 11319.4381486009 -
The
cube root of 128129680 is 504.1385568495
Scales and comparisons
How big is 128129680?- 128,129,680 seconds is equal to 4 years, 3 weeks, 5 days, 23 hours, 34 minutes, 40 seconds.
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To count from 1 to 128,129,680 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 128129680 cubic inches would be around 42 feet tall.
Recreational maths with 128129680
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