128842435840
128,842,435,840 is an even composite number composed of five prime numbers multiplied together.
128842435840 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 128842435840:
28 × 5 × 373 × 421 × 641
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 373 × 421 × 641)See below for interesting mathematical facts about the number 128842435840 from the Numbermatics database.
Names of 128842435840
- Cardinal: 128842435840 can be written as One hundred twenty-eight billion, eight hundred forty-two million, four hundred thirty-five thousand, eight hundred forty.
Scientific notation
- Scientific notation: 1.2884243584 × 1011
Factors of 128842435840
Divisors of 128842435840
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 373 421 640 641 746 842 1280 1282 1492 1684 1865 2105 2564 2984 3205 3368 3730 4210 5128 5968 6410 6736 7460 8420 10256 11936 12820 13472 14920 16840 20512 23872 25640 26944 29840 33680 41024 47744 51280 53888 59680 67360 82048 95488 102560 107776 119360 134720 157033 164096 205120 238720 239093 269440 269861 314066 410240 477440 478186 538880 539722 628132 785165 820480 956372 1079444 1195465 1256264 1349305 1570330 1912744 2158888 2390930 2512528 2698610 3140660 3825488 4317776 4781860 5025056 5397220 6281320 7650976 8635552 9563720 10050112 10794440 12562640 15301952 17271104 19127440 20100224 21588880 25125280 30603904 34542208 38254880 40200448 43177760 50250560 61207808 69084416 76509760 86355520 100501120 100658153 153019520 172711040 201002240 201316306 306039040 345422080 402632612 503290765 805265224 1006581530 1610530448 2013163060 3221060896 4026326120 6442121792 8052652240 12884243584 16105304480 25768487168 32210608960 64421217920 128842435840
- Sum of all divisors σ(n): 310664216016
- Sum of proper divisors (its aliquot sum) s(n): 181821780176
- 128842435840 is an abundant number, because the sum of its proper divisors (181821780176) is greater than itself. Its abundance is 52979344336
Bases of 128842435840
- Binary: 11101111111111001101110001101000000002
- Hexadecimal: 0x1DFF9B8D00
- Base-36: 1N6TGJR4
Squares and roots of 128842435840
- 128842435840 squared (1288424358402) is 16600373273184516505600
- 128842435840 cubed (1288424358403) is 2138832528370326860354189000704000
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The
square root of 128842435840 is 358946.2854522943 -
The
cube root of 128842435840 is 5050.7163097235
Scales and comparisons
How big is 128842435840?- 128,842,435,840 seconds is equal to 4,096 years, 41 weeks, 21 hours, 30 minutes, 40 seconds.
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To count from 1 to 128,842,435,840 would take you about eight thousand, one hundred ninety-three 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 128842435840 cubic inches would be around 420.9 feet tall.
Recreational maths with 128842435840
- 128842435840 backwards is 048534248821
- The number of decimal digits it has is: 12
- The sum of 128842435840's digits is 49
- More coming soon!
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