128400384
128,400,384 is an even composite number composed of four prime numbers multiplied together.
128400384 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred thirty-two divisors.
Prime factorization of 128400384:
210 × 3 × 72 × 853
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 853)See below for interesting mathematical facts about the number 128400384 from the Numbermatics database.
Names of 128400384
- Cardinal: 128400384 can be written as One hundred twenty-eight million, four hundred thousand, three hundred eighty-four.
Scientific notation
- Scientific notation: 1.28400384 × 108
Factors of 128400384
Divisors of 128400384
- Number of divisors d(n): 132
-
Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 256 294 336 384 392 448 512 588 672 768 784 853 896 1024 1176 1344 1536 1568 1706 1792 2352 2559 2688 3072 3136 3412 3584 4704 5118 5376 5971 6272 6824 7168 9408 10236 10752 11942 12544 13648 17913 18816 20472 21504 23884 25088 27296 35826 37632 40944 41797 47768 50176 54592 71652 75264 81888 83594 95536 109184 125391 143304 150528 163776 167188 191072 218368 250782 286608 327552 334376 382144 436736 501564 573216 655104 668752 764288 873472 1003128 1146432 1310208 1337504 1528576 2006256 2292864 2620416 2675008 3057152 4012512 4585728 5350016 6114304 8025024 9171456 10700032 16050048 18342912 21400064 32100096 42800128 64200192 128400384
- Sum of all divisors σ(n): 398575464
- Sum of proper divisors (its aliquot sum) s(n): 270175080
- 128400384 is an abundant number, because the sum of its proper divisors (270175080) is greater than itself. Its abundance is 141774696
Bases of 128400384
- Binary: 1111010011100111100000000002
- Hexadecimal: 0x7A73C00
- Base-36: 24G2DC
Squares and roots of 128400384
- 128400384 squared (1284003842) is 16486658611347456
- 128400384 cubed (1284003843) is 2116893296573920107823104
-
The
square root of 128400384 is 11331.3893234677 -
The
cube root of 128400384 is 504.4933440895
Scales and comparisons
How big is 128400384?- 128,400,384 seconds is equal to 4 years, 4 weeks, 2 days, 2 hours, 46 minutes, 24 seconds.
-
To count from 1 to 128,400,384 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 128400384 cubic inches would be around 42 feet tall.
Recreational maths with 128400384
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