129142440
129,142,440 is an even composite number composed of five prime numbers multiplied together.
129142440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 129142440:
23 × 32 × 5 × 72 × 7321
(2 × 2 × 2 × 3 × 3 × 5 × 7 × 7 × 7321)See below for interesting mathematical facts about the number 129142440 from the Numbermatics database.
Names of 129142440
- Cardinal: 129142440 can be written as One hundred twenty-nine million, one hundred forty-two thousand, four hundred forty.
Scientific notation
- Scientific notation: 1.2914244 × 108
Factors of 129142440
Divisors of 129142440
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 45 49 56 60 63 70 72 84 90 98 105 120 126 140 147 168 180 196 210 245 252 280 294 315 360 392 420 441 490 504 588 630 735 840 882 980 1176 1260 1470 1764 1960 2205 2520 2940 3528 4410 5880 7321 8820 14642 17640 21963 29284 36605 43926 51247 58568 65889 73210 87852 102494 109815 131778 146420 153741 175704 204988 219630 256235 263556 292840 307482 329445 358729 409976 439260 461223 512470 527112 614964 658890 717458 768705 878520 922446 1024940 1076187 1229928 1317780 1434916 1537410 1793645 1844892 2049880 2152374 2306115 2635560 2869832 3074820 3228561 3587290 3689784 4304748 4612230 5380935 6149640 6457122 7174580 8609496 9224460 10761870 12914244 14349160 16142805 18448920 21523740 25828488 32285610 43047480 64571220 129142440
- Sum of all divisors σ(n): 488304180
- Sum of proper divisors (its aliquot sum) s(n): 359161740
- 129142440 is an abundant number, because the sum of its proper divisors (359161740) is greater than itself. Its abundance is 230019300
Bases of 129142440
- Binary: 1111011001010001110101010002
- Hexadecimal: 0x7B28EA8
- Base-36: 24VYY0
Squares and roots of 129142440
- 129142440 squared (1291424402) is 16677769809153600
- 129142440 cubed (1291424403) is 2153807886912430238784000
-
The
square root of 129142440 is 11364.0855329411 -
The
cube root of 129142440 is 505.4633397441
Scales and comparisons
How big is 129142440?- 129,142,440 seconds is equal to 4 years, 5 weeks, 3 days, 16 hours, 54 minutes.
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To count from 1 to 129,142,440 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 129142440 cubic inches would be around 42.1 feet tall.
Recreational maths with 129142440
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The information we have on file for 129142440 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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