128907728880
128,907,728,880 is an even composite number composed of seven prime numbers multiplied together.
128907728880 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 128907728880:
24 × 3 × 5 × 7 × 43 × 349 × 5113
(2 × 2 × 2 × 2 × 3 × 5 × 7 × 43 × 349 × 5113)See below for interesting mathematical facts about the number 128907728880 from the Numbermatics database.
Names of 128907728880
- Cardinal: 128907728880 can be written as One hundred twenty-eight billion, nine hundred seven million, seven hundred twenty-eight thousand, eight hundred eighty.
Scientific notation
- Scientific notation: 1.2890772888 × 1011
Factors of 128907728880
Divisors of 128907728880
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 43 48 56 60 70 80 84 86 105 112 120 129 140 168 172 210 215 240 258 280 301 336 344 349 420 430 516 560 602 645 688 698 840 860 903 1032 1047 1204 1290 1396 1505 1680 1720 1745 1806 2064 2094 2408 2443 2580 2792 3010 3440 3490 3612 4188 4515 4816 4886 5113 5160 5235 5584 6020 6980 7224 7329 8376 9030 9772 10226 10320 10470 12040 12215 13960 14448 14658 15007 15339 16752 18060 19544 20452 20940 24080 24430 25565 27920 29316 30014 30678 35791 36120 36645 39088 40904 41880 45021 48860 51130 58632 60028 61356 71582 72240 73290 75035 76695 81808 83760 90042 97720 102260 105049 107373 117264 120056 122712 143164 146580 150070 153390 178955 180084 195440 204520 210098 214746 219859 225105 240112 245424 286328 293160 300140 306780 315147 357910 360168 409040 420196 429492 439718 450210 525245 536865 572656 586320 600280 613560 630294 659577 715820 720336 840392 858984 879436 900420 1050490 1073730 1099295 1200560 1227120 1260588 1319154 1431640 1539013 1575735 1680784 1717968 1758872 1784437 1800840 2100980 2147460 2198590 2521176 2638308 2863280 3078026 3151470 3297885 3517744 3568874 3601680 4201960 4294920 4397180 4617039 5042352 5276616 5353311 6156052 6302940 6595770 7137748 7695065 8403920 8589840 8794360 8922185 9234078 10553232 10706622 12312104 12491059 12605880 13191540 14275496 15390130 17588720 17844370 18468156 21413244 23085195 24624208 24982118 25211760 26383080 26766555 28550992 30780260 35688740 36936312 37473177 42826488 46170390 49964236 52766160 53533110 61560520 62455295 71377480 73872624 74946354 76730791 85652976 92340780 99928472 107066220 123121040 124910590 142754960 149892708 153461582 184681560 187365885 199856944 214132440 230192373 249821180 299785416 306923164 369363120 374731770 383653955 428264880 460384746 499642360 537115537 599570832 613846328 749463540 767307910 920769492 999284720 1074231074 1150961865 1227692656 1498927080 1534615820 1611346611 1841538984 2148462148 2301923730 2685577685 2997854160 3069231640 3222693222 3683077968 4296924296 4603847460 5371155370 6138463280 6445386444 8056733055 8593848592 9207694920 10742310740 12890772888 16113466110 18415389840 21484621480 25781545776 32226932220 42969242960 64453864440 128907728880
- Sum of all divisors σ(n): 468753331200
- Sum of proper divisors (its aliquot sum) s(n): 339845602320
- 128907728880 is an abundant number, because the sum of its proper divisors (339845602320) is greater than itself. Its abundance is 210937873440
Bases of 128907728880
- Binary: 11110000000110111111111010111111100002
- Hexadecimal: 0x1E037FD7F0
- Base-36: 1N7WC06O
Squares and roots of 128907728880
- 128907728880 squared (1289077288802) is 16617202564999586054400
- 128907728880 cubed (1289077288803) is 2142085842993007216412824131072000
-
The
square root of 128907728880 is 359037.2249224305 -
The
cube root of 128907728880 is 5051.5693437129
Scales and comparisons
How big is 128907728880?- 128,907,728,880 seconds is equal to 4,098 years, 45 weeks, 14 hours, 28 minutes.
-
To count from 1 to 128,907,728,880 would take you about eight thousand, one hundred ninety-seven 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 128907728880 cubic inches would be around 421 feet tall.
Recreational maths with 128907728880
- 128907728880 backwards is 088827709821
- 128907728880 is a
Harshad number . - The number of decimal digits it has is: 12
- The sum of 128907728880's digits is 60
- More coming soon!
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