129904040
129,904,040 is an even composite number composed of five prime numbers multiplied together.
129904040 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 129904040:
23 × 5 × 7 × 37 × 12539
(2 × 2 × 2 × 5 × 7 × 37 × 12539)See below for interesting mathematical facts about the number 129904040 from the Numbermatics database.
Names of 129904040
- Cardinal: 129904040 can be written as One hundred twenty-nine million, nine hundred four thousand and forty.
Scientific notation
- Scientific notation: 1.2990404 × 108
Factors of 129904040
Divisors of 129904040
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 4 5 7 8 10 14 20 28 35 37 40 56 70 74 140 148 185 259 280 296 370 518 740 1036 1295 1480 2072 2590 5180 10360 12539 25078 50156 62695 87773 100312 125390 175546 250780 351092 438865 463943 501560 702184 877730 927886 1755460 1855772 2319715 3247601 3510920 3711544 4639430 6495202 9278860 12990404 16238005 18557720 25980808 32476010 64952020 129904040
- Sum of all divisors σ(n): 343094400
- Sum of proper divisors (its aliquot sum) s(n): 213190360
- 129904040 is an abundant number, because the sum of its proper divisors (213190360) is greater than itself. Its abundance is 83286320
Bases of 129904040
- Binary: 1111011111000101101101010002
- Hexadecimal: 0x7BE2DA8
- Base-36: 25CALK
Squares and roots of 129904040
- 129904040 squared (1299040402) is 16875059608321600
- 129904040 cubed (1299040403) is 2192138418361793459264000
-
The
square root of 129904040 is 11397.5453497673 -
The
cube root of 129904040 is 506.4550266435
Scales and comparisons
How big is 129904040?- 129,904,040 seconds is equal to 4 years, 6 weeks, 5 days, 12 hours, 27 minutes, 20 seconds.
-
To count from 1 to 129,904,040 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 129904040 cubic inches would be around 42.2 feet tall.
Recreational maths with 129904040
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