28629720
28,629,720 is an even composite number composed of five prime numbers multiplied together.
28629720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 28629720:
23 × 33 × 5 × 72 × 541
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 7 × 7 × 541)See below for interesting mathematical facts about the number 28629720 from the Numbermatics database.
Names of 28629720
- Cardinal: 28629720 can be written as Twenty-eight million, six hundred twenty-nine thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.862972 × 107
Factors of 28629720
Divisors of 28629720
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 45 49 54 56 60 63 70 72 84 90 98 105 108 120 126 135 140 147 168 180 189 196 210 216 245 252 270 280 294 315 360 378 392 420 441 490 504 540 541 588 630 735 756 840 882 945 980 1080 1082 1176 1260 1323 1470 1512 1623 1764 1890 1960 2164 2205 2520 2646 2705 2940 3246 3528 3780 3787 4328 4410 4869 5292 5410 5880 6492 6615 7560 7574 8115 8820 9738 10584 10820 11361 12984 13230 14607 15148 16230 17640 18935 19476 21640 22722 24345 26460 26509 29214 30296 32460 34083 37870 38952 45444 48690 52920 53018 56805 58428 64920 68166 73035 75740 79527 90888 97380 102249 106036 113610 116856 132545 136332 146070 151480 159054 170415 194760 204498 212072 227220 238581 265090 272664 292140 318108 340830 397635 408996 454440 477162 511245 530180 584280 636216 681660 715743 795270 817992 954324 1022490 1060360 1192905 1363320 1431486 1590540 1908648 2044980 2385810 2862972 3181080 3578715 4089960 4771620 5725944 7157430 9543240 14314860 28629720
- Sum of all divisors σ(n): 111218400
- Sum of proper divisors (its aliquot sum) s(n): 82588680
- 28629720 is an abundant number, because the sum of its proper divisors (82588680) is greater than itself. Its abundance is 53958960
Bases of 28629720
- Binary: 11011010011011010110110002
- Hexadecimal: 0x1B4DAD8
- Base-36: H1MU0
Squares and roots of 28629720
- 28629720 squared (286297202) is 819660867278400
- 28629720 cubed (286297203) is 23466661125137754048000
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The
square root of 28629720 is 5350.6747238083 -
The
cube root of 28629720 is 305.9184711673
Scales and comparisons
How big is 28629720?- 28,629,720 seconds is equal to 47 weeks, 2 days, 8 hours, 42 minutes.
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To count from 1 to 28,629,720 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 28629720 cubic inches would be around 25.5 feet tall.
Recreational maths with 28629720
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