128739520
128,739,520 is an even composite number composed of five prime numbers multiplied together.
128739520 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 128739520:
26 × 5 × 7 × 13 × 4421
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 13 × 4421)See below for interesting mathematical facts about the number 128739520 from the Numbermatics database.
Names of 128739520
- Cardinal: 128739520 can be written as One hundred twenty-eight million, seven hundred thirty-nine thousand, five hundred twenty.
Scientific notation
- Scientific notation: 1.2873952 × 108
Factors of 128739520
Divisors of 128739520
- Number of divisors d(n): 112
-
Complete list of divisors:
1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 56 64 65 70 80 91 104 112 130 140 160 182 208 224 260 280 320 364 416 448 455 520 560 728 832 910 1040 1120 1456 1820 2080 2240 2912 3640 4160 4421 5824 7280 8842 14560 17684 22105 29120 30947 35368 44210 57473 61894 70736 88420 114946 123788 141472 154735 176840 229892 247576 282944 287365 309470 353680 402311 459784 495152 574730 618940 707360 804622 919568 990304 1149460 1237880 1414720 1609244 1839136 1980608 2011555 2298920 2475760 3218488 3678272 4023110 4597840 4951520 6436976 8046220 9195680 9903040 12873952 16092440 18391360 25747904 32184880 64369760 128739520
- Sum of all divisors σ(n): 377391168
- Sum of proper divisors (its aliquot sum) s(n): 248651648
- 128739520 is an abundant number, because the sum of its proper divisors (248651648) is greater than itself. Its abundance is 119912128
Bases of 128739520
- Binary: 1111010110001101000110000002
- Hexadecimal: 0x7AC68C0
- Base-36: 24NC1S
Squares and roots of 128739520
- 128739520 squared (1287395202) is 16573864009830400
- 128739520 cubed (1287395203) is 2133711297170840977408000
-
The
square root of 128739520 is 11346.3439045359 -
The
cube root of 128739520 is 504.9371159813
Scales and comparisons
How big is 128739520?- 128,739,520 seconds is equal to 4 years, 4 weeks, 6 days, 58 minutes, 40 seconds.
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To count from 1 to 128,739,520 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 128739520 cubic inches would be around 42.1 feet tall.
Recreational maths with 128739520
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The information we have on file for 128739520 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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