28642500
28,642,500 is an even composite number composed of five prime numbers multiplied together.
28642500 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 28642500:
22 × 32 × 54 × 19 × 67
(2 × 2 × 3 × 3 × 5 × 5 × 5 × 5 × 19 × 67)See below for interesting mathematical facts about the number 28642500 from the Numbermatics database.
Names of 28642500
- Cardinal: 28642500 can be written as Twenty-eight million, six hundred forty-two thousand, five hundred.
Scientific notation
- Scientific notation: 2.86425 × 107
Factors of 28642500
Divisors of 28642500
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 19 20 25 30 36 38 45 50 57 60 67 75 76 90 95 100 114 125 134 150 171 180 190 201 225 228 250 268 285 300 335 342 375 380 402 450 475 500 570 603 625 670 684 750 804 855 900 950 1005 1125 1140 1206 1250 1273 1340 1425 1500 1675 1710 1875 1900 2010 2250 2375 2412 2500 2546 2850 3015 3350 3420 3750 3819 4020 4275 4500 4750 5025 5092 5625 5700 6030 6365 6700 7125 7500 7638 8375 8550 9500 10050 11250 11457 11875 12060 12730 14250 15075 15276 16750 17100 19095 20100 21375 22500 22914 23750 25125 25460 28500 30150 31825 33500 35625 38190 41875 42750 45828 47500 50250 57285 60300 63650 71250 75375 76380 83750 85500 95475 100500 106875 114570 125625 127300 142500 150750 159125 167500 190950 213750 229140 251250 286425 301500 318250 376875 381900 427500 477375 502500 572850 636500 753750 795625 954750 1145700 1432125 1507500 1591250 1909500 2386875 2864250 3182500 4773750 5728500 7160625 9547500 14321250 28642500
- Sum of all divisors σ(n): 96656560
- Sum of proper divisors (its aliquot sum) s(n): 68014060
- 28642500 is an abundant number, because the sum of its proper divisors (68014060) is greater than itself. Its abundance is 39371560
Bases of 28642500
- Binary: 11011010100001100110001002
- Hexadecimal: 0x1B50CC4
- Base-36: H1WP0
Squares and roots of 28642500
- 28642500 squared (286425002) is 820392806250000
- 28642500 cubed (286425003) is 23498100953015625000000
-
The
square root of 28642500 is 5351.8688324733 -
The
cube root of 28642500 is 305.9639839707
Scales and comparisons
How big is 28642500?- 28,642,500 seconds is equal to 47 weeks, 2 days, 12 hours, 15 minutes.
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To count from 1 to 28,642,500 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 28642500 cubic inches would be around 25.5 feet tall.
Recreational maths with 28642500
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