28746900
28,746,900 is an even composite number composed of five prime numbers multiplied together.
28746900 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty-four divisors.
Prime factorization of 28746900:
22 × 35 × 52 × 7 × 132
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 7 × 13 × 13)See below for interesting mathematical facts about the number 28746900 from the Numbermatics database.
Names of 28746900
- Cardinal: 28746900 can be written as Twenty-eight million, seven hundred forty-six thousand, nine hundred.
Scientific notation
- Scientific notation: 2.87469 × 107
Factors of 28746900
Divisors of 28746900
- Number of divisors d(n): 324
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Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 13 14 15 18 20 21 25 26 27 28 30 35 36 39 42 45 50 52 54 60 63 65 70 75 78 81 84 90 91 100 105 108 117 126 130 135 140 150 156 162 169 175 180 182 189 195 210 225 234 243 252 260 270 273 300 315 324 325 338 350 351 364 378 390 405 420 450 455 468 486 507 525 540 546 567 585 630 650 675 676 700 702 756 780 810 819 845 900 910 945 972 975 1014 1050 1053 1092 1134 1170 1183 1215 1260 1300 1350 1365 1404 1521 1575 1620 1638 1690 1701 1755 1820 1890 1950 2025 2028 2100 2106 2268 2275 2340 2366 2430 2457 2535 2700 2730 2835 2925 3042 3150 3159 3276 3380 3402 3510 3549 3780 3900 4050 4095 4212 4225 4550 4563 4725 4732 4860 4914 5070 5265 5460 5670 5850 5915 6075 6084 6300 6318 6804 6825 7020 7098 7371 7605 8100 8190 8450 8505 8775 9100 9126 9450 9828 10140 10530 10647 11340 11700 11830 12150 12285 12636 12675 13650 13689 14175 14196 14742 15210 15795 16380 16900 17010 17550 17745 18252 18900 20475 21060 21294 22113 22815 23660 24300 24570 25350 26325 27300 27378 28350 29484 29575 30420 31590 31941 34020 35100 35490 36855 38025 40950 41067 42525 42588 44226 45630 49140 50700 52650 53235 54756 56700 59150 61425 63180 63882 68445 70980 73710 76050 78975 81900 82134 85050 88452 88725 91260 95823 105300 106470 110565 114075 118300 122850 127764 136890 147420 152100 157950 159705 164268 170100 177450 184275 191646 205335 212940 221130 228150 245700 266175 273780 287469 315900 319410 342225 354900 368550 383292 410670 442260 456300 479115 532350 552825 574938 638820 684450 737100 798525 821340 958230 1026675 1064700 1105650 1149876 1368900 1437345 1597050 1916460 2053350 2211300 2395575 2874690 3194100 4106700 4791150 5749380 7186725 9582300 14373450 28746900
- Sum of all divisors σ(n): 115638432
- Sum of proper divisors (its aliquot sum) s(n): 86891532
- 28746900 is an abundant number, because the sum of its proper divisors (86891532) is greater than itself. Its abundance is 58144632
Bases of 28746900
- Binary: 11011011010100100100101002
- Hexadecimal: 0x1B6A494
- Base-36: H4590
Squares and roots of 28746900
- 28746900 squared (287469002) is 826384259610000
- 28746900 cubed (287469003) is 23755985672582709000000
-
The
square root of 28746900 is 5361.6135630985 -
The
cube root of 28746900 is 306.3352726585
Scales and comparisons
How big is 28746900?- 28,746,900 seconds is equal to 47 weeks, 3 days, 17 hours, 15 minutes.
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To count from 1 to 28,746,900 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 28746900 cubic inches would be around 25.5 feet tall.
Recreational maths with 28746900
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