129721104128
129,721,104,128 is an even composite number composed of five prime numbers multiplied together.
129721104128 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty-four divisors.
Prime factorization of 129721104128:
28 × 72 × 11 × 172 × 3253
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 7 × 11 × 17 × 17 × 3253)See below for interesting mathematical facts about the number 129721104128 from the Numbermatics database.
Names of 129721104128
- Cardinal: 129721104128 can be written as One hundred twenty-nine billion, seven hundred twenty-one million, one hundred four thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 1.29721104128 × 1011
Factors of 129721104128
Divisors of 129721104128
- Number of divisors d(n): 324
-
Complete list of divisors:
1 2 4 7 8 11 14 16 17 22 28 32 34 44 49 56 64 68 77 88 98 112 119 128 136 154 176 187 196 224 238 256 272 289 308 352 374 392 448 476 539 544 578 616 704 748 784 833 896 952 1078 1088 1156 1232 1309 1408 1496 1568 1666 1792 1904 2023 2156 2176 2312 2464 2618 2816 2992 3136 3179 3253 3332 3808 4046 4312 4352 4624 4928 5236 5984 6272 6358 6506 6664 7616 8092 8624 9163 9248 9856 10472 11968 12544 12716 13012 13328 14161 15232 16184 17248 18326 18496 19712 20944 22253 22771 23936 25432 26024 26656 28322 30464 32368 34496 35783 36652 36992 41888 44506 45542 47872 50864 52048 53312 55301 56644 64736 68992 71566 73304 73984 83776 89012 91084 101728 104096 106624 110602 113288 129472 137984 143132 146608 155771 159397 167552 178024 182168 203456 208192 213248 221204 226576 250481 258944 286264 293216 311542 318794 335104 356048 364336 387107 406912 416384 442408 453152 500962 517888 572528 586432 608311 623084 637588 712096 728672 774214 813824 832768 884816 906304 940117 1001924 1145056 1172864 1216622 1246168 1275176 1424192 1457344 1548428 1753367 1769632 1812608 1880234 2003848 2290112 2345728 2433244 2492336 2550352 2709749 2848384 2914688 3096856 3506734 3539264 3625216 3760468 4007696 4258177 4580224 4866488 4984672 5100704 5419498 5696768 5829376 6193712 6580819 7013468 7078528 7520936 8015392 8516354 9160448 9732976 9969344 10201408 10341287 10838996 12387424 13161638 14026936 14157056 15041872 16030784 17032708 19465952 19938688 20402816 20682574 21677992 24774848 26323276 28053872 29807239 30083744 32061568 34065416 38931904 39877376 40805632 41365148 43355984 46065733 49549696 52646552 56107744 59614478 60167488 64123136 68130832 72389009 77863808 82730296 86711968 92131466 99099392 105293104 112215488 119228956 120334976 136261664 144778018 155727616 165460592 173423936 184262932 210586208 224430976 238457912 240669952 272523328 289556036 330921184 346847872 368525864 421172416 448861952 476915824 506723063 545046656 579112072 661842368 693695744 737051728 842344832 953831648 1013446126 1090093312 1158224144 1323684736 1474103456 1684689664 1907663296 2026892252 2316448288 2647369472 2948206912 3815326592 4053784504 4632896576 5896413824 7630653184 8107569008 9265793152 11792827648 16215138016 18531586304 32430276032 64860552064 129721104128
- Sum of all divisors σ(n): 349166786472
- Sum of proper divisors (its aliquot sum) s(n): 219445682344
- 129721104128 is an abundant number, because the sum of its proper divisors (219445682344) is greater than itself. Its abundance is 89724578216
Bases of 129721104128
- Binary: 11110001100111111101011110111000000002
- Hexadecimal: 0x1E33FAF700
- Base-36: 1NLCLGJK
Squares and roots of 129721104128
- 129721104128 squared (1297211041282) is 16827564856187418640384
- 129721104128 cubed (1297211041283) is 2182890292930161478532781049905152
-
The
square root of 129721104128 is 360168.1609026539 -
The
cube root of 129721104128 is 5062.1717846845
Scales and comparisons
How big is 129721104128?- 129,721,104,128 seconds is equal to 4,124 years, 37 weeks, 6 days, 16 hours, 2 minutes, 8 seconds.
-
To count from 1 to 129,721,104,128 would take you about eight thousand, two hundred forty-nine 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 129721104128 cubic inches would be around 421.8 feet tall.
Recreational maths with 129721104128
- 129721104128 backwards is 821401127921
- The number of decimal digits it has is: 12
- The sum of 129721104128's digits is 38
- More coming soon!
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