128990736
128,990,736 is an even composite number composed of five prime numbers multiplied together.
128990736 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 128990736:
24 × 32 × 72 × 101 × 181
(2 × 2 × 2 × 2 × 3 × 3 × 7 × 7 × 101 × 181)See below for interesting mathematical facts about the number 128990736 from the Numbermatics database.
Names of 128990736
- Cardinal: 128990736 can be written as One hundred twenty-eight million, nine hundred ninety thousand, seven hundred thirty-six.
Scientific notation
- Scientific notation: 1.28990736 × 108
Factors of 128990736
Divisors of 128990736
- Number of divisors d(n): 180
-
Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 49 56 63 72 84 98 101 112 126 144 147 168 181 196 202 252 294 303 336 362 392 404 441 504 543 588 606 707 724 784 808 882 909 1008 1086 1176 1212 1267 1414 1448 1616 1629 1764 1818 2121 2172 2352 2424 2534 2828 2896 3258 3528 3636 3801 4242 4344 4848 4949 5068 5656 6363 6516 7056 7272 7602 8484 8688 8869 9898 10136 11312 11403 12726 13032 14544 14847 15204 16968 17738 18281 19796 20272 22806 25452 26064 26607 29694 30408 33936 35476 36562 39592 44541 45612 50904 53214 54843 59388 60816 70952 73124 79184 79821 89082 91224 101808 106428 109686 118776 127967 141904 146248 159642 164529 178164 182448 212856 219372 237552 255934 292496 319284 329058 356328 383901 425712 438744 511868 638568 658116 712656 767802 877488 895769 1023736 1151703 1277136 1316232 1535604 1791538 2047472 2303406 2632464 2687307 3071208 3583076 4606812 5374614 6142416 7166152 8061921 9213624 10749228 14332304 16123842 18427248 21498456 32247684 42996912 64495368 128990736
- Sum of all divisors σ(n): 426433644
- Sum of proper divisors (its aliquot sum) s(n): 297442908
- 128990736 is an abundant number, because the sum of its proper divisors (297442908) is greater than itself. Its abundance is 168452172
Bases of 128990736
- Binary: 1111011000000111110000100002
- Hexadecimal: 0x7B03E10
- Base-36: 24SPW0
Squares and roots of 128990736
- 128990736 squared (1289907362) is 16638609973821696
- 128990736 cubed (1289907363) is 2146226546540201299808256
-
The
square root of 128990736 is 11357.4088594185 -
The
cube root of 128990736 is 505.2653391079
Scales and comparisons
How big is 128990736?- 128,990,736 seconds is equal to 4 years, 5 weeks, 1 day, 22 hours, 45 minutes, 36 seconds.
-
To count from 1 to 128,990,736 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 128990736 cubic inches would be around 42.1 feet tall.
Recreational maths with 128990736
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