128721797568
128,721,797,568 is an even composite number composed of six prime numbers multiplied together.
128721797568 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred forty-eight divisors.
Prime factorization of 128721797568:
26 × 33 × 7 × 13 × 43 × 19037
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 7 × 13 × 43 × 19037)See below for interesting mathematical facts about the number 128721797568 from the Numbermatics database.
Names of 128721797568
- Cardinal: 128721797568 can be written as One hundred twenty-eight billion, seven hundred twenty-one million, seven hundred ninety-seven thousand, five hundred sixty-eight.
Scientific notation
- Scientific notation: 1.28721797568 × 1011
Factors of 128721797568
Divisors of 128721797568
- Number of divisors d(n): 448
-
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 43 48 52 54 56 63 64 72 78 84 86 91 96 104 108 112 117 126 129 144 156 168 172 182 189 192 208 216 224 234 252 258 273 288 301 312 336 344 351 364 378 387 416 432 448 468 504 516 546 559 576 602 624 672 688 702 728 756 774 819 832 864 903 936 1008 1032 1092 1118 1161 1204 1248 1344 1376 1404 1456 1512 1548 1638 1677 1728 1806 1872 2016 2064 2184 2236 2322 2408 2457 2496 2709 2752 2808 2912 3024 3096 3276 3354 3612 3744 3913 4032 4128 4368 4472 4644 4816 4914 5031 5418 5616 5824 6048 6192 6552 6708 7224 7488 7826 8127 8256 8736 8944 9288 9632 9828 10062 10836 11232 11739 12096 12384 13104 13416 14448 15093 15652 16254 17472 17888 18576 19037 19264 19656 20124 21672 22464 23478 24768 26208 26832 28896 30186 31304 32508 35217 35776 37152 38074 39312 40248 43344 46956 52416 53664 57111 57792 60372 62608 65016 70434 74304 76148 78624 80496 86688 93912 105651 107328 114222 120744 125216 130032 133259 140868 152296 157248 160992 171333 173376 187824 211302 228444 241488 247481 250432 260064 266518 281736 304592 321984 342666 375648 399777 422604 456888 482976 494962 513999 520128 533036 563472 609184 685332 742443 751296 799554 818591 845208 913776 965952 989924 1027998 1066072 1126944 1199331 1218368 1370664 1484886 1599108 1637182 1690416 1732367 1827552 1979848 2055996 2132144 2227329 2253888 2398662 2455773 2741328 2969772 3198216 3274364 3380832 3464734 3597993 3655104 3959696 4111992 4264288 4454658 4797324 4911546 5197101 5482656 5730137 5939544 6396432 6548728 6681987 6761664 6929468 7195986 7367319 7919392 8223984 8528576 8909316 9594648 9823092 10394202 10641683 10965312 11460274 11879088 12792864 13097456 13363974 13858936 14391972 14734638 15591303 15838784 16447968 17190411 17818632 19189296 19646184 20788404 21283366 22101957 22920548 23758176 25585728 26194912 26727948 27717872 28783944 29469276 31182606 31925049 32895936 34380822 35637264 38378592 39292368 41576808 42566732 44203914 45841096 46773909 47516352 51571233 52389824 53455896 55435744 57567888 58938552 62365212 63850098 68761644 71274528 74491781 76757184 78584736 83153616 85133464 88407828 91682192 93547818 95775147 103142466 106911792 110871488 115135776 117877104 124730424 127700196 137523288 142549056 148983562 154713699 157169472 166307232 170266928 176815656 183364384 187095636 191550294 206284932 213823584 223475343 230271552 235754208 249460848 255400392 275046576 287325441 297967124 309427398 332614464 340533856 353631312 366728768 374191272 383100588 412569864 427647168 446950686 471508416 498921696 510800784 550093152 574650882 595934248 618854796 670426029 681067712 707262624 748382544 766201176 825139728 893901372 997843392 1021601568 1100186304 1149301764 1191868496 1237709592 1340852058 1414525248 1496765088 1532402352 1650279456 1787802744 2011278087 2043203136 2298603528 2383736992 2475419184 2681704116 2993530176 3064804704 3300558912 3575605488 4022556174 4597207056 4767473984 4950838368 5363408232 6129609408 7151210976 8045112348 9194414112 9901676736 10726816464 14302421952 16090224696 18388828224 21453632928 32180449392 42907265856 64360898784 128721797568
- Sum of all divisors σ(n): 476601861120
- Sum of proper divisors (its aliquot sum) s(n): 347880063552
- 128721797568 is an abundant number, because the sum of its proper divisors (347880063552) is greater than itself. Its abundance is 219158265984
Bases of 128721797568
- Binary: 11101111110000110101011000001110000002
- Hexadecimal: 0x1DF86AC1C0
- Base-36: 1N4TMUO0
Squares and roots of 128721797568
- 128721797568 squared (1287217975682) is 16569301169137170714624
- 128721797568 cubed (1287217975683) is 2132830230936900617952088425234432
-
The
square root of 128721797568 is 358778.2010769327 -
The
cube root of 128721797568 is 5049.1394484111
Scales and comparisons
How big is 128721797568?- 128,721,797,568 seconds is equal to 4,092 years, 49 weeks, 4 days, 14 hours, 52 minutes, 48 seconds.
-
To count from 1 to 128,721,797,568 would take you about eight thousand, one hundred eighty-five 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 128721797568 cubic inches would be around 420.8 feet tall.
Recreational maths with 128721797568
- 128721797568 backwards is 865797127821
- 128721797568 is a
Harshad number . - The number of decimal digits it has is: 12
- The sum of 128721797568's digits is 63
- More coming soon!
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