130921728
130,921,728 is an even composite number composed of four prime numbers multiplied together.
130921728 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 130921728:
28 × 3 × 74 × 71
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 7 × 7 × 71)See below for interesting mathematical facts about the number 130921728 from the Numbermatics database.
Names of 130921728
- Cardinal: 130921728 can be written as One hundred thirty million, nine hundred twenty-one thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.30921728 × 108
Factors of 130921728
Divisors of 130921728
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 71 84 96 98 112 128 142 147 168 192 196 213 224 256 284 294 336 343 384 392 426 448 497 568 588 672 686 768 784 852 896 994 1029 1136 1176 1344 1372 1491 1568 1704 1792 1988 2058 2272 2352 2401 2688 2744 2982 3136 3408 3479 3976 4116 4544 4704 4802 5376 5488 5964 6272 6816 6958 7203 7952 8232 9088 9408 9604 10437 10976 11928 12544 13632 13916 14406 15904 16464 18176 18816 19208 20874 21952 23856 24353 27264 27832 28812 31808 32928 37632 38416 41748 43904 47712 48706 54528 55664 57624 63616 65856 73059 76832 83496 87808 95424 97412 111328 115248 127232 131712 146118 153664 166992 170471 190848 194824 222656 230496 263424 292236 307328 333984 340942 381696 389648 445312 460992 511413 584472 614656 667968 681884 779296 890624 921984 1022826 1168944 1335936 1363768 1558592 1843968 2045652 2337888 2671872 2727536 3117184 4091304 4675776 5455072 6234368 8182608 9351552 10910144 16365216 18703104 21820288 32730432 43640576 65460864 130921728
- Sum of all divisors σ(n): 412217568
- Sum of proper divisors (its aliquot sum) s(n): 281295840
- 130921728 is an abundant number, because the sum of its proper divisors (281295840) is greater than itself. Its abundance is 150374112
Bases of 130921728
- Binary: 1111100110110110101000000002
- Hexadecimal: 0x7CDB500
- Base-36: 25Y3UO
Squares and roots of 130921728
- 130921728 squared (1309217282) is 17140498862505984
- 130921728 cubed (1309217283) is 2244063729861317835620352
-
The
square root of 130921728 is 11442.1033031519 -
The
cube root of 130921728 is 507.7741364747
Scales and comparisons
How big is 130921728?- 130,921,728 seconds is equal to 4 years, 8 weeks, 3 days, 7 hours, 8 minutes, 48 seconds.
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To count from 1 to 130,921,728 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 130921728 cubic inches would be around 42.3 feet tall.
Recreational maths with 130921728
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The information we have on file for 130921728 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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