28897200
28,897,200 is an even composite number composed of five prime numbers multiplied together.
28897200 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 28897200:
24 × 32 × 52 × 23 × 349
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 23 × 349)See below for interesting mathematical facts about the number 28897200 from the Numbermatics database.
Names of 28897200
- Cardinal: 28897200 can be written as Twenty-eight million, eight hundred ninety-seven thousand, two hundred.
Scientific notation
- Scientific notation: 2.88972 × 107
Factors of 28897200
Divisors of 28897200
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 25 30 36 40 45 46 48 50 60 69 72 75 80 90 92 100 115 120 138 144 150 180 184 200 207 225 230 240 276 300 345 349 360 368 400 414 450 460 552 575 600 690 698 720 828 900 920 1035 1047 1104 1150 1200 1380 1396 1656 1725 1745 1800 1840 2070 2094 2300 2760 2792 3141 3312 3450 3490 3600 4140 4188 4600 5175 5235 5520 5584 6282 6900 6980 8027 8280 8376 8725 9200 10350 10470 12564 13800 13960 15705 16054 16560 16752 17450 20700 20940 24081 25128 26175 27600 27920 31410 32108 34900 40135 41400 41880 48162 50256 52350 62820 64216 69800 72243 78525 80270 82800 83760 96324 104700 120405 125640 128432 139600 144486 157050 160540 192648 200675 209400 240810 251280 288972 314100 321080 361215 385296 401350 418800 481620 577944 602025 628200 642160 722430 802700 963240 1155888 1204050 1256400 1444860 1605400 1806075 1926480 2408100 2889720 3210800 3612150 4816200 5779440 7224300 9632400 14448600 28897200
- Sum of all divisors σ(n): 104941200
- Sum of proper divisors (its aliquot sum) s(n): 76044000
- 28897200 is an abundant number, because the sum of its proper divisors (76044000) is greater than itself. Its abundance is 47146800
Bases of 28897200
- Binary: 11011100011101111101100002
- Hexadecimal: 0x1B8EFB0
- Base-36: H7D80
Squares and roots of 28897200
- 28897200 squared (288972002) is 835048167840000
- 28897200 cubed (288972003) is 24130553915706048000000
-
The
square root of 28897200 is 5375.6115931119 -
The
cube root of 28897200 is 306.8682249835
Scales and comparisons
How big is 28897200?- 28,897,200 seconds is equal to 47 weeks, 5 days, 11 hours.
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To count from 1 to 28,897,200 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 28897200 cubic inches would be around 25.6 feet tall.
Recreational maths with 28897200
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