129420672
129,420,672 is an even composite number composed of four prime numbers multiplied together.
129420672 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 129420672:
27 × 3 × 37 × 9109
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 37 × 9109)See below for interesting mathematical facts about the number 129420672 from the Numbermatics database.
Names of 129420672
- Cardinal: 129420672 can be written as One hundred twenty-nine million, four hundred twenty thousand, six hundred seventy-two.
Scientific notation
- Scientific notation: 1.29420672 × 108
Factors of 129420672
Divisors of 129420672
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 4 6 8 12 16 24 32 37 48 64 74 96 111 128 148 192 222 296 384 444 592 888 1184 1776 2368 3552 4736 7104 9109 14208 18218 27327 36436 54654 72872 109308 145744 218616 291488 337033 437232 582976 674066 874464 1011099 1165952 1348132 1748928 2022198 2696264 3497856 4044396 5392528 8088792 10785056 16177584 21570112 32355168 43140224 64710336 129420672
- Sum of all divisors σ(n): 353103600
- Sum of proper divisors (its aliquot sum) s(n): 223682928
- 129420672 is an abundant number, because the sum of its proper divisors (223682928) is greater than itself. Its abundance is 94262256
Bases of 129420672
- Binary: 1111011011011001101100000002
- Hexadecimal: 0x7B6CD80
- Base-36: 251XMO
Squares and roots of 129420672
- 129420672 squared (1294206722) is 16749710340931584
- 129420672 cubed (1294206723) is 2167758768128714707304448
-
The
square root of 129420672 is 11376.3206705857 -
The
cube root of 129420672 is 505.8260792599
Scales and comparisons
How big is 129420672?- 129,420,672 seconds is equal to 4 years, 5 weeks, 6 days, 22 hours, 11 minutes, 12 seconds.
-
To count from 1 to 129,420,672 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 129420672 cubic inches would be around 42.2 feet tall.
Recreational maths with 129420672
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