129999740
129,999,740 is an even composite number composed of five prime numbers multiplied together.
129999740 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 129999740:
22 × 5 × 13 × 31 × 1272
(2 × 2 × 5 × 13 × 31 × 127 × 127)See below for interesting mathematical facts about the number 129999740 from the Numbermatics database.
Names of 129999740
- Cardinal: 129999740 can be written as One hundred twenty-nine million, nine hundred ninety-nine thousand, seven hundred forty.
Scientific notation
- Scientific notation: 1.2999974 × 108
Factors of 129999740
Divisors of 129999740
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 5 10 13 20 26 31 52 62 65 124 127 130 155 254 260 310 403 508 620 635 806 1270 1612 1651 2015 2540 3302 3937 4030 6604 7874 8060 8255 15748 16129 16510 19685 32258 33020 39370 51181 64516 78740 80645 102362 161290 204724 209677 255905 322580 419354 499999 511810 838708 999998 1023620 1048385 1999996 2096770 2499995 4193540 4999990 6499987 9999980 12999974 25999948 32499935 64999870 129999740
- Sum of all divisors σ(n): 305891712
- Sum of proper divisors (its aliquot sum) s(n): 175891972
- 129999740 is an abundant number, because the sum of its proper divisors (175891972) is greater than itself. Its abundance is 45892232
Bases of 129999740
- Binary: 1111011111110100011011111002
- Hexadecimal: 0x7BFA37C
- Base-36: 25ECFW
Squares and roots of 129999740
- 129999740 squared (1299997402) is 16899932400067600
- 129999740 cubed (1299997403) is 2196986818026363982424000
-
The
square root of 129999740 is 11401.7428492315 -
The
cube root of 129999740 is 506.5793641899
Scales and comparisons
How big is 129999740?- 129,999,740 seconds is equal to 4 years, 6 weeks, 6 days, 15 hours, 2 minutes, 20 seconds.
-
To count from 1 to 129,999,740 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 129999740 cubic inches would be around 42.2 feet tall.
Recreational maths with 129999740
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The information we have on file for 129999740 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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