28976640
28,976,640 is an even composite number composed of five prime numbers multiplied together.
28976640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 28976640:
29 × 3 × 5 × 73 × 11
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 7 × 7 × 7 × 11)See below for interesting mathematical facts about the number 28976640 from the Numbermatics database.
Names of 28976640
- Cardinal: 28976640 can be written as Twenty-eight million, nine hundred seventy-six thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.897664 × 107
Factors of 28976640
Divisors of 28976640
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 32 33 35 40 42 44 48 49 55 56 60 64 66 70 77 80 84 88 96 98 105 110 112 120 128 132 140 147 154 160 165 168 176 192 196 210 220 224 231 240 245 256 264 280 294 308 320 330 336 343 352 384 385 392 420 440 448 462 480 490 512 528 539 560 588 616 640 660 672 686 704 735 768 770 784 840 880 896 924 960 980 1029 1056 1078 1120 1155 1176 1232 1280 1320 1344 1372 1408 1470 1536 1540 1568 1617 1680 1715 1760 1792 1848 1920 1960 2058 2112 2156 2240 2310 2352 2464 2560 2640 2688 2695 2744 2816 2940 3080 3136 3234 3360 3430 3520 3584 3696 3773 3840 3920 4116 4224 4312 4480 4620 4704 4928 5145 5280 5376 5390 5488 5632 5880 6160 6272 6468 6720 6860 7040 7392 7546 7680 7840 8085 8232 8448 8624 8960 9240 9408 9856 10290 10560 10752 10780 10976 11319 11760 12320 12544 12936 13440 13720 14080 14784 15092 15680 16170 16464 16896 17248 17920 18480 18816 18865 19712 20580 21120 21560 21952 22638 23520 24640 25088 25872 26880 27440 28160 29568 30184 31360 32340 32928 34496 36960 37632 37730 39424 41160 42240 43120 43904 45276 47040 49280 51744 53760 54880 56595 59136 60368 62720 64680 65856 68992 73920 75264 75460 82320 84480 86240 87808 90552 94080 98560 103488 109760 113190 118272 120736 125440 129360 131712 137984 147840 150920 164640 172480 175616 181104 188160 197120 206976 219520 226380 241472 258720 263424 275968 295680 301840 329280 344960 362208 376320 413952 439040 452760 482944 517440 526848 591360 603680 658560 689920 724416 827904 878080 905520 965888 1034880 1207360 1317120 1379840 1448832 1811040 1931776 2069760 2414720 2634240 2897664 3622080 4139520 4829440 5795328 7244160 9658880 14488320 28976640
- Sum of all divisors σ(n): 117849600
- Sum of proper divisors (its aliquot sum) s(n): 88872960
- 28976640 is an abundant number, because the sum of its proper divisors (88872960) is greater than itself. Its abundance is 59896320
Bases of 28976640
- Binary: 11011101000100110000000002
- Hexadecimal: 0x1BA2600
- Base-36: H92IO
Squares and roots of 28976640
- 28976640 squared (289766402) is 839645665689600
- 28976640 cubed (289766403) is 24330110182247890944000
-
The
square root of 28976640 is 5382.9954486327 -
The
cube root of 28976640 is 307.1491669363
Scales and comparisons
How big is 28976640?- 28,976,640 seconds is equal to 47 weeks, 6 days, 9 hours, 4 minutes.
-
To count from 1 to 28,976,640 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 28976640 cubic inches would be around 25.6 feet tall.
Recreational maths with 28976640
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