728136864
728,136,864 is an even composite number composed of four prime numbers multiplied together.
728136864 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of four hundred twenty divisors.
Prime factorization of 728136864:
25 × 36 × 74 × 13
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 7 × 7 × 7 × 7 × 13)See below for interesting mathematical facts about the number 728136864 from the Numbermatics database.
Names of 728136864
- Cardinal: 728136864 can be written as Seven hundred twenty-eight million, one hundred thirty-six thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 7.28136864 × 108
Factors of 728136864
Divisors of 728136864
- Number of divisors d(n): 420
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 32 36 39 42 48 49 52 54 56 63 72 78 81 84 91 96 98 104 108 112 117 126 144 147 156 162 168 182 189 196 208 216 224 234 243 252 273 288 294 312 324 336 343 351 364 378 392 416 432 441 468 486 504 546 567 588 624 637 648 672 686 702 728 729 756 784 819 864 882 936 972 1008 1029 1053 1092 1134 1176 1248 1274 1296 1323 1372 1404 1456 1458 1512 1568 1638 1701 1764 1872 1911 1944 2016 2058 2106 2184 2268 2352 2401 2457 2548 2592 2646 2744 2808 2912 2916 3024 3087 3159 3276 3402 3528 3744 3822 3888 3969 4116 4212 4368 4459 4536 4704 4802 4914 5096 5103 5292 5488 5616 5733 5832 6048 6174 6318 6552 6804 7056 7203 7371 7644 7776 7938 8232 8424 8736 8918 9072 9261 9477 9604 9828 10192 10206 10584 10976 11232 11466 11664 11907 12348 12636 13104 13377 13608 14112 14406 14742 15288 15876 16464 16848 17199 17836 18144 18522 18954 19208 19656 20384 20412 21168 21609 22113 22932 23328 23814 24696 25272 26208 26754 27216 27783 28812 29484 30576 31213 31752 32928 33696 34398 35672 35721 37044 37908 38416 39312 40131 40824 42336 43218 44226 45864 47628 49392 50544 51597 53508 54432 55566 57624 58968 61152 62426 63504 64827 66339 68796 71344 71442 74088 75816 76832 78624 80262 81648 83349 86436 88452 91728 93639 95256 98784 101088 103194 107016 111132 115248 117936 120393 124852 127008 129654 132678 137592 142688 142884 148176 151632 154791 160524 163296 166698 172872 176904 183456 187278 190512 194481 206388 214032 222264 230496 235872 240786 249704 250047 259308 265356 275184 280917 285768 296352 303264 309582 321048 333396 345744 353808 361179 374556 381024 388962 412776 428064 444528 464373 481572 499408 500094 518616 530712 550368 561834 571536 583443 619164 642096 666792 691488 707616 722358 749112 777924 825552 842751 889056 928746 963144 998816 1000188 1037232 1061424 1083537 1123668 1143072 1166886 1238328 1284192 1333584 1444716 1498224 1555848 1651104 1685502 1750329 1857492 1926288 2000376 2074464 2122848 2167074 2247336 2333772 2476656 2528253 2667168 2889432 2996448 3111696 3250611 3371004 3500658 3714984 3852576 4000752 4334148 4494672 4667544 4953312 5056506 5778864 6223392 6501222 6742008 7001316 7429968 7584759 8001504 8668296 8989344 9335088 10113012 11557728 13002444 13484016 14002632 14859936 15169518 17336592 18670176 20226024 22754277 26004888 26968032 28005264 30339036 34673184 40452048 45508554 52009776 56010528 60678072 80904096 91017108 104019552 121356144 182034216 242712288 364068432 728136864
- Sum of all divisors σ(n): 2700236826
- Sum of proper divisors (its aliquot sum) s(n): 1972099962
- 728136864 is an abundant number, because the sum of its proper divisors (1972099962) is greater than itself. Its abundance is 1243963098
Bases of 728136864
- Binary: 1010110110011001111100101000002
- Hexadecimal: 0x2B667CA0
- Base-36: C1II00
Squares and roots of 728136864
- 728136864 squared (7281368642) is 530183292715754496
- 728136864 cubed (7281368643) is 386046000103243522111340544
-
The
square root of 728136864 is 26984.0112659331 -
The
cube root of 728136864 is 899.6446597221
Scales and comparisons
How big is 728136864?- 728,136,864 seconds is equal to 23 years, 7 weeks, 6 days, 12 hours, 14 minutes, 24 seconds.
-
To count from 1 to 728,136,864 would take you about thirty-four 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 728136864 cubic inches would be around 75 feet tall.
Recreational maths with 728136864
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