28706820
28,706,820 is an even composite number composed of six prime numbers multiplied together.
28706820 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 28706820:
22 × 3 × 5 × 37 × 67 × 193
(2 × 2 × 3 × 5 × 37 × 67 × 193)See below for interesting mathematical facts about the number 28706820 from the Numbermatics database.
Names of 28706820
- Cardinal: 28706820 can be written as Twenty-eight million, seven hundred six thousand, eight hundred twenty.
Scientific notation
- Scientific notation: 2.870682 × 107
Factors of 28706820
Divisors of 28706820
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 3 4 5 6 10 12 15 20 30 37 60 67 74 111 134 148 185 193 201 222 268 335 370 386 402 444 555 579 670 740 772 804 965 1005 1110 1158 1340 1930 2010 2220 2316 2479 2895 3860 4020 4958 5790 7141 7437 9916 11580 12395 12931 14282 14874 21423 24790 25862 28564 29748 35705 37185 38793 42846 49580 51724 64655 71410 74370 77586 85692 107115 129310 142820 148740 155172 193965 214230 258620 387930 428460 478447 775860 956894 1435341 1913788 2392235 2870682 4784470 5741364 7176705 9568940 14353410 28706820
- Sum of all divisors σ(n): 84217728
- Sum of proper divisors (its aliquot sum) s(n): 55510908
- 28706820 is an abundant number, because the sum of its proper divisors (55510908) is greater than itself. Its abundance is 26804088
Bases of 28706820
- Binary: 11011011000001000000001002
- Hexadecimal: 0x1B60804
- Base-36: H3ABO
Squares and roots of 28706820
- 28706820 squared (287068202) is 824081514512400
- 28706820 cubed (287068203) is 23656759702434854568000
-
The
square root of 28706820 is 5357.8745785993 -
The
cube root of 28706820 is 306.1928384221
Scales and comparisons
How big is 28706820?- 28,706,820 seconds is equal to 47 weeks, 3 days, 6 hours, 7 minutes.
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To count from 1 to 28,706,820 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 28706820 cubic inches would be around 25.5 feet tall.
Recreational maths with 28706820
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The information we have on file for 28706820 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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