21729472128
21,729,472,128 is an even composite number composed of five prime numbers multiplied together.
21729472128 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of five hundred twelve divisors.
Prime factorization of 21729472128:
27 × 37 × 7 × 13 × 853
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 7 × 13 × 853)See below for interesting mathematical facts about the number 21729472128 from the Numbermatics database.
Names of 21729472128
- Cardinal: 21729472128 can be written as Twenty-one billion, seven hundred twenty-nine million, four hundred seventy-two thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1729472128 × 1010
Factors of 21729472128
Divisors of 21729472128
- Number of divisors d(n): 512
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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 52 54 56 63 64 72 78 81 84 91 96 104 108 112 117 126 128 144 156 162 168 182 189 192 208 216 224 234 243 252 273 288 312 324 336 351 364 378 384 416 432 448 468 486 504 546 567 576 624 648 672 702 728 729 756 819 832 853 864 896 936 972 1008 1053 1092 1134 1152 1248 1296 1344 1404 1456 1458 1512 1638 1664 1701 1706 1728 1872 1944 2016 2106 2184 2187 2268 2457 2496 2559 2592 2688 2808 2912 2916 3024 3159 3276 3402 3412 3456 3744 3888 4032 4212 4368 4374 4536 4914 4992 5103 5118 5184 5616 5824 5832 5971 6048 6318 6552 6804 6824 7371 7488 7677 7776 8064 8424 8736 8748 9072 9477 9828 10206 10236 10368 11089 11232 11648 11664 11942 12096 12636 13104 13608 13648 14742 14976 15309 15354 15552 16848 17472 17496 17913 18144 18954 19656 20412 20472 22113 22178 22464 23031 23328 23884 24192 25272 26208 27216 27296 28431 29484 30618 30708 31104 33267 33696 34944 34992 35826 36288 37908 39312 40824 40944 44226 44356 44928 46062 46656 47768 50544 52416 53739 54432 54592 56862 58968 61236 61416 66339 66534 67392 69093 69984 71652 72576 75816 77623 78624 81648 81888 88452 88712 92124 93312 95536 99801 101088 104832 107478 108864 109184 113724 117936 122472 122832 132678 133068 134784 138186 139968 143304 151632 155246 157248 161217 163296 163776 176904 177424 184248 191072 199017 199602 202176 207279 214956 217728 227448 232869 235872 244944 245664 265356 266136 276372 279936 286608 299403 303264 310492 314496 322434 326592 327552 353808 354848 368496 382144 398034 399204 404352 414558 429912 454896 465738 471744 483651 489888 491328 530712 532272 552744 573216 598806 606528 620984 621837 644868 653184 698607 707616 709696 736992 764288 796068 798408 829116 859824 898209 909792 931476 943488 967302 979776 982656 1061424 1064544 1105488 1146432 1197612 1213056 1241968 1243674 1289736 1397214 1415232 1419392 1450953 1473984 1592136 1596816 1658232 1719648 1796418 1819584 1862952 1865511 1934604 1959552 2095821 2122848 2129088 2210976 2292864 2395224 2483936 2487348 2579472 2694627 2794428 2830464 2901906 2947968 3184272 3193632 3316464 3439296 3592836 3639168 3725904 3731022 3869208 4191642 4245696 4258176 4352859 4421952 4790448 4967872 4974696 5158944 5389254 5588856 5803812 6287463 6368544 6387264 6632928 6878592 7185672 7451808 7462044 7738416 8083881 8383284 8491392 8705718 8843904 9580896 9935744 9949392 10317888 10778508 11177712 11607624 12574926 12737088 12774528 13058577 13265856 14371344 14903616 14924088 15476832 16167762 16766568 17411436 18862389 19161792 19898784 20635776 21557016 22355424 23215248 24251643 25149852 25474176 26117154 26531712 28742688 29807232 29848176 30953664 32335524 33533136 34822872 37724778 38323584 39797568 43114032 44710848 46430496 48503286 50299704 52234308 56587167 57485376 59696352 61907328 64671048 67066272 69645744 75449556 79595136 86228064 89421696 92860992 97006572 100599408 104468616 113174334 114970752 119392704 129342096 134132544 139291488 150899112 169761501 172456128 185721984 194013144 201198816 208937232 226348668 238785408 258684192 268265088 278582976 301798224 339523002 344912256 388026288 402397632 417874464 452697336 517368384 557165952 603596448 679046004 776052576 804795264 835748928 905394672 1034736768 1207192896 1358092008 1552105152 1671497856 1810789344 2414385792 2716184016 3104210304 3621578688 5432368032 7243157376 10864736064 21729472128
- Sum of all divisors σ(n): 79999987200
- Sum of proper divisors (its aliquot sum) s(n): 58270515072
- 21729472128 is an abundant number, because the sum of its proper divisors (58270515072) is greater than itself. Its abundance is 36541042944
Bases of 21729472128
- Binary: 101000011110010110101101110100000002
- Hexadecimal: 0x50F2D6E80
- Base-36: 9ZD6000
Squares and roots of 21729472128
- 21729472128 squared (217294721282) is 472169958961528848384
- 21729472128 cubed (217294721283) is 10260003962933444935228065841152
-
The
square root of 21729472128 is 147409.1996043667 -
The
cube root of 21729472128 is 2790.5066301609
Scales and comparisons
How big is 21729472128?- 21,729,472,128 seconds is equal to 690 years, 48 weeks, 2 days, 12 hours, 28 minutes, 48 seconds.
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To count from 1 to 21,729,472,128 would take you about one thousand, three hundred eighty-one 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 21729472128 cubic inches would be around 232.5 feet tall.
Recreational maths with 21729472128
- 21729472128 backwards is 82127492712
- The number of decimal digits it has is: 11
- The sum of 21729472128's digits is 45
- More coming soon!
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