128729727808
128,729,727,808 is an even composite number composed of five prime numbers multiplied together.
128729727808 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred fifty-two divisors.
Prime factorization of 128729727808:
26 × 112 × 19 × 832 × 127
(2 × 2 × 2 × 2 × 2 × 2 × 11 × 11 × 19 × 83 × 83 × 127)See below for interesting mathematical facts about the number 128729727808 from the Numbermatics database.
Names of 128729727808
- Cardinal: 128729727808 can be written as One hundred twenty-eight billion, seven hundred twenty-nine million, seven hundred twenty-seven thousand, eight hundred eight.
Scientific notation
- Scientific notation: 1.28729727808 × 1011
Factors of 128729727808
Divisors of 128729727808
- Number of divisors d(n): 252
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Complete list of divisors:
1 2 4 8 11 16 19 22 32 38 44 64 76 83 88 121 127 152 166 176 209 242 254 304 332 352 418 484 508 608 664 704 836 913 968 1016 1216 1328 1397 1577 1672 1826 1936 2032 2299 2413 2656 2794 3154 3344 3652 3872 4064 4598 4826 5312 5588 6308 6688 6889 7304 7744 8128 9196 9652 10043 10541 11176 12616 13376 13778 14608 15367 17347 18392 19304 20086 21082 22352 25232 26543 27556 29216 30734 34694 36784 38608 40172 42164 44704 50464 53086 55112 58432 61468 69388 73568 75779 77216 80344 84328 89408 100928 106172 110224 115951 122936 130891 138776 147136 151558 154432 160688 168656 190817 200279 212344 220448 231902 245872 261782 277552 291973 303116 321376 337312 381634 400558 424688 440896 463804 491744 523564 555104 583946 606232 642752 674624 763268 801116 833569 849376 874903 927608 983488 1047128 1110208 1167892 1212464 1275461 1439801 1526536 1602232 1667138 1698752 1749806 1855216 2094256 2203069 2335784 2424928 2550922 2879602 3053072 3204464 3334276 3499612 3710432 4188512 4406138 4671568 4849856 5101844 5759204 6106144 6408928 6668552 6999224 7420864 8377024 8812276 9343136 9623933 10203688 11518408 12212288 12817856 13337104 13998448 15837811 16623157 17624552 18686272 19247866 20407376 23036816 24233759 26674208 27996896 31675622 33246314 35249104 38495732 40814752 46073632 48467518 53348416 55993792 63351244 66492628 70498208 76991464 81629504 92147264 96935036 105863263 126702488 132985256 140996416 153982928 182854727 193870072 211726526 253404976 265970512 307965856 365709454 387740144 423453052 506809952 531941024 615931712 731418908 775480288 846906104 1013619904 1063882048 1462837816 1550960576 1693812208 2011401997 2925675632 3387624416 4022803994 5851351264 6775248832 8045607988 11702702528 16091215976 32182431952 64364863904 128729727808
- Sum of all divisors σ(n): 301519214080
- Sum of proper divisors (its aliquot sum) s(n): 172789486272
- 128729727808 is an abundant number, because the sum of its proper divisors (172789486272) is greater than itself. Its abundance is 44059758464
Bases of 128729727808
- Binary: 11101111110001110001111000011010000002
- Hexadecimal: 0x1DF8E3C340
- Base-36: 1N4YCTOG
Squares and roots of 128729727808
- 128729727808 squared (1287297278082) is 16571342821521768484864
- 128729727808 cubed (1287297278083) is 2133224450827551981403335287898112
-
The
square root of 128729727808 is 358789.2526372551 -
The
cube root of 128729727808 is 5049.2431347231
Scales and comparisons
How big is 128729727808?- 128,729,727,808 seconds is equal to 4,093 years, 10 weeks, 5 days, 9 hours, 43 minutes, 28 seconds.
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To count from 1 to 128,729,727,808 would take you about eight thousand, one hundred eighty-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 128729727808 cubic inches would be around 420.8 feet tall.
Recreational maths with 128729727808
- 128729727808 backwards is 808727927821
- The number of decimal digits it has is: 12
- The sum of 128729727808's digits is 61
- More coming soon!
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