28721993472
28,721,993,472 is an even composite number composed of four prime numbers multiplied together.
28721993472 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of four hundred thirty-two divisors.
Prime factorization of 28721993472:
28 × 37 × 292 × 61
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 29 × 29 × 61)See below for interesting mathematical facts about the number 28721993472 from the Numbermatics database.
Names of 28721993472
- Cardinal: 28721993472 can be written as Twenty-eight billion, seven hundred twenty-one million, nine hundred ninety-three thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 2.8721993472 × 1010
Factors of 28721993472
Divisors of 28721993472
- Number of divisors d(n): 432
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 29 32 36 48 54 58 61 64 72 81 87 96 108 116 122 128 144 162 174 183 192 216 232 243 244 256 261 288 324 348 366 384 432 464 486 488 522 549 576 648 696 729 732 768 783 841 864 928 972 976 1044 1098 1152 1296 1392 1458 1464 1566 1647 1682 1728 1769 1856 1944 1952 2088 2187 2196 2304 2349 2523 2592 2784 2916 2928 3132 3294 3364 3456 3538 3712 3888 3904 4176 4374 4392 4698 4941 5046 5184 5307 5568 5832 5856 6264 6588 6728 6912 7047 7076 7424 7569 7776 7808 8352 8748 8784 9396 9882 10092 10368 10614 11136 11664 11712 12528 13176 13456 14094 14152 14823 15138 15552 15616 15921 16704 17496 17568 18792 19764 20184 20736 21141 21228 22272 22707 23328 23424 25056 26352 26912 28188 28304 29646 30276 31104 31842 33408 34992 35136 37584 39528 40368 42282 42456 44469 45414 46656 46848 47763 50112 51301 52704 53824 56376 56608 59292 60552 62208 63423 63684 66816 68121 69984 70272 75168 79056 80736 84564 84912 88938 90828 93312 95526 100224 102602 105408 107648 112752 113216 118584 121104 126846 127368 133407 136242 139968 140544 143289 150336 153903 158112 161472 169128 169824 177876 181656 186624 191052 200448 204363 205204 210816 215296 225504 226432 237168 242208 253692 254736 266814 272484 279936 286578 300672 307806 316224 322944 338256 339648 355752 363312 382104 408726 410408 421632 429867 451008 452864 461709 474336 484416 507384 509472 533628 544968 559872 573156 601344 613089 615612 632448 645888 676512 679296 711504 726624 764208 817452 820816 859734 902016 923418 948672 968832 1014768 1018944 1067256 1089936 1146312 1226178 1231224 1264896 1289601 1353024 1358592 1385127 1423008 1453248 1528416 1634904 1641632 1719468 1804032 1839267 1846836 1897344 1937664 2029536 2037888 2134512 2179872 2292624 2452356 2462448 2579202 2706048 2770254 2846016 2906496 3056832 3269808 3283264 3438936 3678534 3693672 3794688 3868803 4059072 4075776 4155381 4269024 4359744 4585248 4904712 4924896 5158404 5412096 5540508 5692032 5812992 6113664 6539616 6566528 6877872 7357068 7387344 7737606 8118144 8310762 8538048 8719488 9170496 9809424 9849792 10316808 11081016 11384064 12227328 12466143 13079232 13133056 13755744 14714136 14774688 15475212 16236288 16621524 17076096 17438976 18340992 19618848 19699584 20633616 22162032 24932286 26158464 27511488 29428272 29549376 30950424 33243048 34152192 36681984 37398429 39237696 39399168 41267232 44324064 49864572 52316928 55022976 58856544 59098752 61900848 66486096 74796858 78475392 82534464 88648128 99729144 110045952 112195287 117713088 118197504 123801696 132972192 149593716 156950784 165068928 177296256 199458288 224390574 235426176 247603392 265944384 299187432 330137856 354592512 398916576 448781148 470852352 495206784 531888768 598374864 797833152 897562296 990413568 1063777536 1196749728 1595666304 1795124592 2393499456 3191332608 3590249184 4786998912 7180498368 9573997824 14360996736 28721993472
- Sum of all divisors σ(n): 90511672160
- Sum of proper divisors (its aliquot sum) s(n): 61789678688
- 28721993472 is an abundant number, because the sum of its proper divisors (61789678688) is greater than itself. Its abundance is 33067685216
Bases of 28721993472
- Binary: 110101011111111011011010111000000002
- Hexadecimal: 0x6AFF6D700
- Base-36: D70C000
Squares and roots of 28721993472
- 28721993472 squared (287219934722) is 824952909005610614784
- 28721993472 cubed (287219934723) is 23694292067166558089199954690048
-
The
square root of 28721993472 is 169475.6427100957 -
The
cube root of 28721993472 is 3062.4677670955
Scales and comparisons
How big is 28721993472?- 28,721,993,472 seconds is equal to 913 years, 14 weeks, 11 hours, 31 minutes, 12 seconds.
-
To count from 1 to 28,721,993,472 would take you about one thousand, eight hundred twenty-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 28721993472 cubic inches would be around 255.2 feet tall.
Recreational maths with 28721993472
- 28721993472 backwards is 27439912782
- 28721993472 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 28721993472's digits is 54
- More coming soon!
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The information we have on file for 28721993472 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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