129628746
129,628,746 is an even composite number composed of five prime numbers multiplied together.
129628746 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 129628746:
2 × 32 × 132 × 43 × 991
(2 × 3 × 3 × 13 × 13 × 43 × 991)See below for interesting mathematical facts about the number 129628746 from the Numbermatics database.
Names of 129628746
- Cardinal: 129628746 can be written as One hundred twenty-nine million, six hundred twenty-eight thousand, seven hundred forty-six.
Scientific notation
- Scientific notation: 1.29628746 × 108
Factors of 129628746
Divisors of 129628746
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 6 9 13 18 26 39 43 78 86 117 129 169 234 258 338 387 507 559 774 991 1014 1118 1521 1677 1982 2973 3042 3354 5031 5946 7267 8919 10062 12883 14534 17838 21801 25766 38649 42613 43602 65403 77298 85226 115947 127839 130806 167479 231894 255678 334958 383517 502437 553969 767034 1004874 1107938 1507311 1661907 3014622 3323814 4985721 7201597 9971442 14403194 21604791 43209582 64814373 129628746
- Sum of all divisors σ(n): 311515776
- Sum of proper divisors (its aliquot sum) s(n): 181887030
- 129628746 is an abundant number, because the sum of its proper divisors (181887030) is greater than itself. Its abundance is 52258284
Bases of 129628746
- Binary: 1111011100111111010010010102
- Hexadecimal: 0x7B9FA4A
- Base-36: 256E6I
Squares and roots of 129628746
- 129628746 squared (1296287462) is 16803611789532516
- 129628746 cubed (1296287463) is 2178231124547915975304936
-
The
square root of 129628746 is 11385.4620459599 -
The
cube root of 129628746 is 506.0970120253
Scales and comparisons
How big is 129628746?- 129,628,746 seconds is equal to 4 years, 6 weeks, 2 days, 7 hours, 59 minutes, 6 seconds.
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To count from 1 to 129,628,746 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 129628746 cubic inches would be around 42.2 feet tall.
Recreational maths with 129628746
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The information we have on file for 129628746 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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