128070720
128,070,720 is an even composite number composed of four prime numbers multiplied together.
128070720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred fifty-two divisors.
Prime factorization of 128070720:
26 × 38 × 5 × 61
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 61)See below for interesting mathematical facts about the number 128070720 from the Numbermatics database.
Names of 128070720
- Cardinal: 128070720 can be written as One hundred twenty-eight million, seventy thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.2807072 × 108
Factors of 128070720
Divisors of 128070720
- Number of divisors d(n): 252
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 61 64 72 80 81 90 96 108 120 122 135 144 160 162 180 183 192 216 240 243 244 270 288 305 320 324 360 366 405 432 480 486 488 540 549 576 610 648 720 729 732 810 864 915 960 972 976 1080 1098 1215 1220 1296 1440 1458 1464 1620 1647 1728 1830 1944 1952 2160 2187 2196 2430 2440 2592 2745 2880 2916 2928 3240 3294 3645 3660 3888 3904 4320 4374 4392 4860 4880 4941 5184 5490 5832 5856 6480 6561 6588 7290 7320 7776 8235 8640 8748 8784 9720 9760 9882 10935 10980 11664 11712 12960 13122 13176 14580 14640 14823 15552 16470 17496 17568 19440 19520 19764 21870 21960 23328 24705 25920 26244 26352 29160 29280 29646 32805 32940 34992 35136 38880 39528 43740 43920 44469 46656 49410 52488 52704 58320 58560 59292 65610 65880 69984 74115 77760 79056 87480 87840 88938 98820 104976 105408 116640 118584 131220 131760 133407 139968 148230 158112 174960 175680 177876 197640 209952 222345 233280 237168 262440 263520 266814 296460 316224 349920 355752 395280 400221 419904 444690 474336 524880 527040 533628 592920 667035 699840 711504 790560 800442 889380 948672 1049760 1067256 1185840 1334070 1423008 1581120 1600884 1778760 2001105 2099520 2134512 2371680 2668140 2846016 3201768 3557520 4002210 4269024 4743360 5336280 6403536 7115040 8004420 8538048 10672560 12807072 14230080 16008840 21345120 25614144 32017680 42690240 64035360 128070720
- Sum of all divisors σ(n): 464928204
- Sum of proper divisors (its aliquot sum) s(n): 336857484
- 128070720 is an abundant number, because the sum of its proper divisors (336857484) is greater than itself. Its abundance is 208786764
Bases of 128070720
- Binary: 1111010001000110100010000002
- Hexadecimal: 0x7A23440
- Base-36: 249000
Squares and roots of 128070720
- 128070720 squared (1280707202) is 16402109321318400
- 128070720 cubed (1280707203) is 2100629950299958837248000
-
The
square root of 128070720 is 11316.8334793793 -
The
cube root of 128070720 is 504.0612170539
Scales and comparisons
How big is 128070720?- 128,070,720 seconds is equal to 4 years, 3 weeks, 5 days, 7 hours, 12 minutes.
-
To count from 1 to 128,070,720 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 128070720 cubic inches would be around 42 feet tall.
Recreational maths with 128070720
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