129442394720
129,442,394,720 is an even composite number composed of five prime numbers multiplied together.
129442394720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 129442394720:
25 × 5 × 312 × 712 × 167
(2 × 2 × 2 × 2 × 2 × 5 × 31 × 31 × 71 × 71 × 167)See below for interesting mathematical facts about the number 129442394720 from the Numbermatics database.
Names of 129442394720
- Cardinal: 129442394720 can be written as One hundred twenty-nine billion, four hundred forty-two million, three hundred ninety-four thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.2944239472 × 1011
Factors of 129442394720
Divisors of 129442394720
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 4 5 8 10 16 20 31 32 40 62 71 80 124 142 155 160 167 248 284 310 334 355 496 568 620 668 710 835 961 992 1136 1240 1336 1420 1670 1922 2201 2272 2480 2672 2840 3340 3844 4402 4805 4960 5041 5177 5344 5680 6680 7688 8804 9610 10082 10354 11005 11360 11857 13360 15376 17608 19220 20164 20708 22010 23714 25205 25885 26720 30752 35216 38440 40328 41416 44020 47428 50410 51770 59285 68231 70432 76880 80656 82832 88040 94856 100820 103540 118570 136462 153760 156271 160487 161312 165664 176080 189712 201640 207080 237140 272924 312542 320974 341155 352160 367567 379424 403280 414160 474280 545848 625084 641948 682310 735134 781355 802435 806560 828320 841847 948560 1091696 1250168 1283896 1364620 1470268 1562710 1604870 1683694 1837835 1897120 2183392 2500336 2567792 2729240 2940536 3125420 3209740 3367388 3675670 4209235 4844401 5000672 5135584 5458480 5881072 6250840 6419480 6734776 7351340 8418470 9688802 10916960 11394577 11762144 12501680 12838960 13469552 14702680 16836940 19377604 22789154 24222005 25003360 25677920 26097257 26939104 29405360 33673880 38755208 45578308 48444010 52194514 56972885 58810720 67347760 77510416 91156616 96888020 104389028 113945770 130486285 134695520 155020832 182313232 193776040 208778056 227891540 260972570 364626464 387552080 417556112 455783080 521945140 775104160 809014967 835112224 911566160 1043890280 1618029934 1823132320 2087780560 3236059868 4045074835 4175561120 6472119736 8090149670 12944239472 16180299340 25888478944 32360598680 64721197360 129442394720
- Sum of all divisors σ(n): 322423080336
- Sum of proper divisors (its aliquot sum) s(n): 192980685616
- 129442394720 is an abundant number, because the sum of its proper divisors (192980685616) is greater than itself. Its abundance is 63538290896
Bases of 129442394720
- Binary: 11110001000110101111000110010011000002
- Hexadecimal: 0x1E235E3260
- Base-36: 1NGQNQZK
Squares and roots of 129442394720
- 129442394720 squared (1294423947202) is 16755333550848283878400
- 129442394720 cubed (1294423947203) is 2168850499154162752622465282048000
-
The
square root of 129442394720 is 359781.0371878985 -
The
cube root of 129442394720 is 5058.5437794257
Scales and comparisons
How big is 129442394720?- 129,442,394,720 seconds is equal to 4,115 years, 45 weeks, 20 hours, 45 minutes, 20 seconds.
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To count from 1 to 129,442,394,720 would take you about eight thousand, two hundred thirty-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 129442394720 cubic inches would be around 421.5 feet tall.
Recreational maths with 129442394720
- 129442394720 backwards is 027493244921
- The number of decimal digits it has is: 12
- The sum of 129442394720's digits is 47
- More coming soon!
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