129238720
129,238,720 is an even composite number composed of five prime numbers multiplied together.
129238720 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 129238720:
26 × 5 × 13 × 47 × 661
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 × 47 × 661)See below for interesting mathematical facts about the number 129238720 from the Numbermatics database.
Names of 129238720
- Cardinal: 129238720 can be written as One hundred twenty-nine million, two hundred thirty-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.2923872 × 108
Factors of 129238720
Divisors of 129238720
- Number of divisors d(n): 112
-
Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 32 40 47 52 64 65 80 94 104 130 160 188 208 235 260 320 376 416 470 520 611 661 752 832 940 1040 1222 1322 1504 1880 2080 2444 2644 3008 3055 3305 3760 4160 4888 5288 6110 6610 7520 8593 9776 10576 12220 13220 15040 17186 19552 21152 24440 26440 31067 34372 39104 42304 42965 48880 52880 62134 68744 85930 97760 105760 124268 137488 155335 171860 195520 211520 248536 274976 310670 343720 403871 497072 549952 621340 687440 807742 994144 1242680 1374880 1615484 1988288 2019355 2485360 2749760 3230968 4038710 4970720 6461936 8077420 9941440 12923872 16154840 25847744 32309680 64619360 129238720
- Sum of all divisors σ(n): 338986368
- Sum of proper divisors (its aliquot sum) s(n): 209747648
- 129238720 is an abundant number, because the sum of its proper divisors (209747648) is greater than itself. Its abundance is 80508928
Bases of 129238720
- Binary: 1111011010000000110110000002
- Hexadecimal: 0x7B406C0
- Base-36: 24Y18G
Squares and roots of 129238720
- 129238720 squared (1292387202) is 16702646747238400
- 129238720 cubed (1292387203) is 2158628686225254350848000
-
The
square root of 129238720 is 11368.3208962449 -
The
cube root of 129238720 is 505.5889218051
Scales and comparisons
How big is 129238720?- 129,238,720 seconds is equal to 4 years, 5 weeks, 4 days, 19 hours, 38 minutes, 40 seconds.
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To count from 1 to 129,238,720 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 129238720 cubic inches would be around 42.1 feet tall.
Recreational maths with 129238720
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The information we have on file for 129238720 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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