128812320
128,812,320 is an even composite number composed of six prime numbers multiplied together.
128812320 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 128812320:
25 × 32 × 5 × 7 × 13 × 983
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 7 × 13 × 983)See below for interesting mathematical facts about the number 128812320 from the Numbermatics database.
Names of 128812320
- Cardinal: 128812320 can be written as One hundred twenty-eight million, eight hundred twelve thousand, three hundred twenty.
Scientific notation
- Scientific notation: 1.2881232 × 108
Factors of 128812320
Divisors of 128812320
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 28 30 32 35 36 39 40 42 45 48 52 56 60 63 65 70 72 78 80 84 90 91 96 104 105 112 117 120 126 130 140 144 156 160 168 180 182 195 208 210 224 234 240 252 260 273 280 288 312 315 336 360 364 390 416 420 455 468 480 504 520 546 560 585 624 630 672 720 728 780 819 840 910 936 983 1008 1040 1092 1120 1170 1248 1260 1365 1440 1456 1560 1638 1680 1820 1872 1966 2016 2080 2184 2340 2520 2730 2912 2949 3120 3276 3360 3640 3744 3932 4095 4368 4680 4915 5040 5460 5898 6240 6552 6881 7280 7864 8190 8736 8847 9360 9830 10080 10920 11796 12779 13104 13762 14560 14745 15728 16380 17694 18720 19660 20643 21840 23592 25558 26208 27524 29490 31456 32760 34405 35388 38337 39320 41286 43680 44235 47184 51116 55048 58980 61929 63895 65520 68810 70776 76674 78640 82572 88470 89453 94368 102232 103215 110096 115011 117960 123858 127790 131040 137620 141552 153348 157280 165144 176940 178906 191685 204464 206430 220192 230022 235920 247716 255580 268359 275240 283104 306696 309645 330288 353880 357812 383370 408928 412860 447265 460044 471840 495432 511160 536718 550480 575055 613392 619290 660576 707760 715624 766740 805077 825720 894530 920088 990864 1022320 1073436 1100960 1150110 1226784 1238580 1341795 1415520 1431248 1533480 1610154 1651440 1789060 1840176 1981728 2044640 2146872 2300220 2477160 2683590 2862496 3066960 3220308 3302880 3578120 3680352 4025385 4293744 4600440 4954320 5367180 6133920 6440616 7156240 8050770 8587488 9200880 9908640 10734360 12881232 14312480 16101540 18401760 21468720 25762464 32203080 42937440 64406160 128812320
- Sum of all divisors σ(n): 541562112
- Sum of proper divisors (its aliquot sum) s(n): 412749792
- 128812320 is an abundant number, because the sum of its proper divisors (412749792) is greater than itself. Its abundance is 283937472
Bases of 128812320
- Binary: 1111010110110000101001000002
- Hexadecimal: 0x7AD8520
- Base-36: 24OW80
Squares and roots of 128812320
- 128812320 squared (1288123202) is 16592613783782400
- 128812320 cubed (1288123203) is 2137333076352989319168000
-
The
square root of 128812320 is 11349.5515329901 -
The
cube root of 128812320 is 505.0322758185
Scales and comparisons
How big is 128812320?- 128,812,320 seconds is equal to 4 years, 4 weeks, 6 days, 21 hours, 12 minutes.
-
To count from 1 to 128,812,320 would take you about 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 128812320 cubic inches would be around 42.1 feet tall.
Recreational maths with 128812320
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