128720060
128,720,060 is an even composite number composed of six prime numbers multiplied together.
128720060 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 128720060:
22 × 5 × 72 × 19 × 31 × 223
(2 × 2 × 5 × 7 × 7 × 19 × 31 × 223)See below for interesting mathematical facts about the number 128720060 from the Numbermatics database.
Names of 128720060
- Cardinal: 128720060 can be written as One hundred twenty-eight million, seven hundred twenty thousand and sixty.
Scientific notation
- Scientific notation: 1.2872006 × 108
Factors of 128720060
Divisors of 128720060
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 7 10 14 19 20 28 31 35 38 49 62 70 76 95 98 124 133 140 155 190 196 217 223 245 266 310 380 434 446 490 532 589 620 665 868 892 931 980 1085 1115 1178 1330 1519 1561 1862 2170 2230 2356 2660 2945 3038 3122 3724 4123 4237 4340 4460 4655 5890 6076 6244 6913 7595 7805 8246 8474 9310 10927 11780 13826 15190 15610 16492 16948 18620 20615 21185 21854 27652 28861 29659 30380 31220 34565 41230 42370 43708 48391 54635 57722 59318 69130 82460 84740 96782 109270 115444 118636 131347 138260 144305 148295 193564 207613 218540 241955 262694 288610 296590 338737 415226 483910 525388 577220 593180 656735 677474 830452 919429 967820 1038065 1313470 1354948 1693685 1838858 2076130 2626940 3387370 3677716 4152260 4597145 6436003 6774740 9194290 12872006 18388580 25744012 32180015 64360030 128720060
- Sum of all divisors σ(n): 343203840
- Sum of proper divisors (its aliquot sum) s(n): 214483780
- 128720060 is an abundant number, because the sum of its proper divisors (214483780) is greater than itself. Its abundance is 85763720
Bases of 128720060
- Binary: 1111010110000011100101111002
- Hexadecimal: 0x7AC1CBC
- Base-36: 24MX18
Squares and roots of 128720060
- 128720060 squared (1287200602) is 16568853846403600
- 128720060 cubed (1287200603) is 2132743861240302176216000
-
The
square root of 128720060 is 11345.4863271699 -
The
cube root of 128720060 is 504.9116729487
Scales and comparisons
How big is 128720060?- 128,720,060 seconds is equal to 4 years, 4 weeks, 5 days, 19 hours, 34 minutes, 20 seconds.
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To count from 1 to 128,720,060 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 128720060 cubic inches would be around 42.1 feet tall.
Recreational maths with 128720060
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