28938420
28,938,420 is an even composite number composed of six prime numbers multiplied together.
28938420 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 28938420:
22 × 32 × 5 × 72 × 17 × 193
(2 × 2 × 3 × 3 × 5 × 7 × 7 × 17 × 193)See below for interesting mathematical facts about the number 28938420 from the Numbermatics database.
Names of 28938420
- Cardinal: 28938420 can be written as Twenty-eight million, nine hundred thirty-eight thousand, four hundred twenty.
Scientific notation
- Scientific notation: 2.893842 × 107
Factors of 28938420
Divisors of 28938420
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 17 18 20 21 28 30 34 35 36 42 45 49 51 60 63 68 70 84 85 90 98 102 105 119 126 140 147 153 170 180 193 196 204 210 238 245 252 255 294 306 315 340 357 386 420 441 476 490 510 579 588 595 612 630 714 735 765 772 833 882 965 980 1020 1071 1158 1190 1260 1351 1428 1470 1530 1666 1737 1764 1785 1930 2142 2205 2316 2380 2499 2702 2895 2940 3060 3281 3332 3474 3570 3860 4053 4165 4284 4410 4998 5355 5404 5790 6562 6755 6948 7140 7497 8106 8330 8685 8820 9457 9843 9996 10710 11580 12159 12495 13124 13510 14994 16212 16405 16660 17370 18914 19686 20265 21420 22967 24318 24990 27020 28371 29529 29988 32810 34740 37485 37828 39372 40530 45934 47285 48636 49215 49980 56742 59058 60795 65620 68901 74970 81060 85113 91868 94570 98430 113484 114835 118116 121590 137802 141855 147645 149940 160769 170226 189140 196860 206703 229670 243180 275604 283710 295290 321538 340452 344505 413406 425565 459340 482307 567420 590580 643076 689010 803845 826812 851130 964614 1033515 1378020 1446921 1607690 1702260 1929228 2067030 2411535 2893842 3215380 4134060 4823070 5787684 7234605 9646140 14469210 28938420
- Sum of all divisors σ(n): 108678024
- Sum of proper divisors (its aliquot sum) s(n): 79739604
- 28938420 is an abundant number, because the sum of its proper divisors (79739604) is greater than itself. Its abundance is 50801184
Bases of 28938420
- Binary: 11011100110010000101101002
- Hexadecimal: 0x1B990B4
- Base-36: H8910
Squares and roots of 28938420
- 28938420 squared (289384202) is 837432152096400
- 28938420 cubed (289384203) is 24233963338869503688000
-
The
square root of 28938420 is 5379.4442092097 -
The
cube root of 28938420 is 307.0140649337
Scales and comparisons
How big is 28938420?- 28,938,420 seconds is equal to 47 weeks, 5 days, 22 hours, 27 minutes.
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To count from 1 to 28,938,420 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 28938420 cubic inches would be around 25.6 feet tall.
Recreational maths with 28938420
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The information we have on file for 28938420 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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