28738980
28,738,980 is an even composite number composed of five prime numbers multiplied together.
28738980 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 28738980:
22 × 32 × 5 × 67 × 2383
(2 × 2 × 3 × 3 × 5 × 67 × 2383)See below for interesting mathematical facts about the number 28738980 from the Numbermatics database.
Names of 28738980
- Cardinal: 28738980 can be written as Twenty-eight million, seven hundred thirty-eight thousand, nine hundred eighty.
Scientific notation
- Scientific notation: 2.873898 × 107
Factors of 28738980
Divisors of 28738980
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 67 90 134 180 201 268 335 402 603 670 804 1005 1206 1340 2010 2383 2412 3015 4020 4766 6030 7149 9532 11915 12060 14298 21447 23830 28596 35745 42894 47660 71490 85788 107235 142980 159661 214470 319322 428940 478983 638644 798305 957966 1436949 1596610 1915932 2394915 2873898 3193220 4789830 5747796 7184745 9579660 14369490 28738980
- Sum of all divisors σ(n): 88513152
- Sum of proper divisors (its aliquot sum) s(n): 59774172
- 28738980 is an abundant number, because the sum of its proper divisors (59774172) is greater than itself. Its abundance is 31035192
Bases of 28738980
- Binary: 11011011010000101101001002
- Hexadecimal: 0x1B685A4
- Base-36: H3Z50
Squares and roots of 28738980
- 28738980 squared (287389802) is 825928971440400
- 28738980 cubed (287389803) is 23736356191646226792000
-
The
square root of 28738980 is 5360.8749285913 -
The
cube root of 28738980 is 306.3071374719
Scales and comparisons
How big is 28738980?- 28,738,980 seconds is equal to 47 weeks, 3 days, 15 hours, 3 minutes.
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To count from 1 to 28,738,980 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 28738980 cubic inches would be around 25.5 feet tall.
Recreational maths with 28738980
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The information we have on file for 28738980 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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