28988640
28,988,640 is an even composite number composed of five prime numbers multiplied together.
28988640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 28988640:
25 × 32 × 5 × 41 × 491
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 41 × 491)See below for interesting mathematical facts about the number 28988640 from the Numbermatics database.
Names of 28988640
- Cardinal: 28988640 can be written as Twenty-eight million, nine hundred eighty-eight thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.898864 × 107
Factors of 28988640
Divisors of 28988640
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 41 45 48 60 72 80 82 90 96 120 123 144 160 164 180 205 240 246 288 328 360 369 410 480 491 492 615 656 720 738 820 982 984 1230 1312 1440 1473 1476 1640 1845 1964 1968 2455 2460 2946 2952 3280 3690 3928 3936 4419 4910 4920 5892 5904 6560 7365 7380 7856 8838 9820 9840 11784 11808 14730 14760 15712 17676 19640 19680 20131 22095 23568 29460 29520 35352 39280 40262 44190 47136 58920 59040 60393 70704 78560 80524 88380 100655 117840 120786 141408 161048 176760 181179 201310 235680 241572 301965 322096 353520 362358 402620 483144 603930 644192 707040 724716 805240 905895 966288 1207860 1449432 1610480 1811790 1932576 2415720 2898864 3220960 3623580 4831440 5797728 7247160 9662880 14494320 28988640
- Sum of all divisors σ(n): 101542896
- Sum of proper divisors (its aliquot sum) s(n): 72554256
- 28988640 is an abundant number, because the sum of its proper divisors (72554256) is greater than itself. Its abundance is 43565616
Bases of 28988640
- Binary: 11011101001010100111000002
- Hexadecimal: 0x1BA54E0
- Base-36: H9BS0
Squares and roots of 28988640
- 28988640 squared (289886402) is 840341249049600
- 28988640 cubed (289886403) is 24360349945849196544000
-
The
square root of 28988640 is 5384.1099543007 -
The
cube root of 28988640 is 307.1915606405
Scales and comparisons
How big is 28988640?- 28,988,640 seconds is equal to 47 weeks, 6 days, 12 hours, 24 minutes.
-
To count from 1 to 28,988,640 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 28988640 cubic inches would be around 25.6 feet tall.
Recreational maths with 28988640
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The information we have on file for 28988640 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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