28628478
28,628,478 is an even composite number composed of five prime numbers multiplied together.
28628478 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 28628478:
2 × 34 × 19 × 71 × 131
(2 × 3 × 3 × 3 × 3 × 19 × 71 × 131)See below for interesting mathematical facts about the number 28628478 from the Numbermatics database.
Names of 28628478
- Cardinal: 28628478 can be written as Twenty-eight million, six hundred twenty-eight thousand, four hundred seventy-eight.
Scientific notation
- Scientific notation: 2.8628478 × 107
Factors of 28628478
Divisors of 28628478
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 6 9 18 19 27 38 54 57 71 81 114 131 142 162 171 213 262 342 393 426 513 639 786 1026 1179 1278 1349 1539 1917 2358 2489 2698 3078 3537 3834 4047 4978 5751 7074 7467 8094 9301 10611 11502 12141 14934 18602 21222 22401 24282 27903 36423 44802 55806 67203 72846 83709 109269 134406 167418 176719 201609 218538 251127 353438 403218 502254 530157 753381 1060314 1506762 1590471 3180942 4771413 9542826 14314239 28628478
- Sum of all divisors σ(n): 68999040
- Sum of proper divisors (its aliquot sum) s(n): 40370562
- 28628478 is an abundant number, because the sum of its proper divisors (40370562) is greater than itself. Its abundance is 11742084
Bases of 28628478
- Binary: 11011010011010101111111102
- Hexadecimal: 0x1B4D5FE
- Base-36: H1LVI
Squares and roots of 28628478
- 28628478 squared (286284782) is 819589752596484
- 28628478 cubed (286284783) is 23463607201233885071352
-
The
square root of 28628478 is 5350.5586624203 -
The
cube root of 28628478 is 305.9140473699
Scales and comparisons
How big is 28628478?- 28,628,478 seconds is equal to 47 weeks, 2 days, 8 hours, 21 minutes, 18 seconds.
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To count from 1 to 28,628,478 would take you about nineteen weeks!
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 28628478 cubic inches would be around 25.5 feet tall.
Recreational maths with 28628478
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The information we have on file for 28628478 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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