129915072
129,915,072 is an even composite number composed of four prime numbers multiplied together.
129915072 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty-six divisors.
Prime factorization of 129915072:
26 × 32 × 72 × 4603
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 7 × 7 × 4603)See below for interesting mathematical facts about the number 129915072 from the Numbermatics database.
Names of 129915072
- Cardinal: 129915072 can be written as One hundred twenty-nine million, nine hundred fifteen thousand and seventy-two.
Scientific notation
- Scientific notation: 1.29915072 × 108
Factors of 129915072
Divisors of 129915072
- Number of divisors d(n): 126
-
Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 64 72 84 96 98 112 126 144 147 168 192 196 224 252 288 294 336 392 441 448 504 576 588 672 784 882 1008 1176 1344 1568 1764 2016 2352 3136 3528 4032 4603 4704 7056 9206 9408 13809 14112 18412 27618 28224 32221 36824 41427 55236 64442 73648 82854 96663 110472 128884 147296 165708 193326 220944 225547 257768 289989 294592 331416 386652 441888 451094 515536 579978 662832 676641 773304 883776 902188 1031072 1159956 1325664 1353282 1546608 1804376 2029923 2062144 2319912 2651328 2706564 3093216 3608752 4059846 4639824 5413128 6186432 7217504 8119692 9279648 10826256 14435008 16239384 18559296 21652512 32478768 43305024 64957536 129915072
- Sum of all divisors σ(n): 433268628
- Sum of proper divisors (its aliquot sum) s(n): 303353556
- 129915072 is an abundant number, because the sum of its proper divisors (303353556) is greater than itself. Its abundance is 173438484
Bases of 129915072
- Binary: 1111011111001011000110000002
- Hexadecimal: 0x7BE58C0
- Base-36: 25CJ40
Squares and roots of 129915072
- 129915072 squared (1299150722) is 16877925932765184
- 129915072 cubed (1299150723) is 2192696962765856038453248
-
The
square root of 129915072 is 11398.0293033489 -
The
cube root of 129915072 is 506.4693630047
Scales and comparisons
How big is 129915072?- 129,915,072 seconds is equal to 4 years, 6 weeks, 5 days, 15 hours, 31 minutes, 12 seconds.
-
To count from 1 to 129,915,072 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 129915072 cubic inches would be around 42.2 feet tall.
Recreational maths with 129915072
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