28408320
28,408,320 is an even composite number composed of four prime numbers multiplied together.
28408320 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred divisors.
Prime factorization of 28408320:
29 × 34 × 5 × 137
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 137)See below for interesting mathematical facts about the number 28408320 from the Numbermatics database.
Names of 28408320
- Cardinal: 28408320 can be written as Twenty-eight million, four hundred eight thousand, three hundred twenty.
Scientific notation
- Scientific notation: 2.840832 × 107
Factors of 28408320
Divisors of 28408320
- Number of divisors d(n): 200
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 137 144 160 162 180 192 216 240 256 270 274 288 320 324 360 384 405 411 432 480 512 540 548 576 640 648 685 720 768 810 822 864 960 1080 1096 1152 1233 1280 1296 1370 1440 1536 1620 1644 1728 1920 2055 2160 2192 2304 2466 2560 2592 2740 2880 3240 3288 3456 3699 3840 4110 4320 4384 4608 4932 5184 5480 5760 6165 6480 6576 6912 7398 7680 8220 8640 8768 9864 10368 10960 11097 11520 12330 12960 13152 13824 14796 16440 17280 17536 18495 19728 20736 21920 22194 23040 24660 25920 26304 29592 32880 34560 35072 36990 39456 41472 43840 44388 49320 51840 52608 55485 59184 65760 69120 70144 73980 78912 87680 88776 98640 103680 105216 110970 118368 131520 147960 157824 175360 177552 197280 207360 210432 221940 236736 263040 295920 315648 350720 355104 394560 443880 473472 526080 591840 631296 710208 789120 887760 946944 1052160 1183680 1420416 1578240 1775520 1893888 2367360 2840832 3156480 3551040 4734720 5681664 7102080 9469440 14204160 28408320
- Sum of all divisors σ(n): 102492324
- Sum of proper divisors (its aliquot sum) s(n): 74084004
- 28408320 is an abundant number, because the sum of its proper divisors (74084004) is greater than itself. Its abundance is 45675684
Bases of 28408320
- Binary: 11011000101111010000000002
- Hexadecimal: 0x1B17A00
- Base-36: GWW00
Squares and roots of 28408320
- 28408320 squared (284083202) is 807032645222400
- 28408320 cubed (284083203) is 22926441635924410368000
-
The
square root of 28408320 is 5329.9455907167 -
The
cube root of 28408320 is 305.1278510845
Scales and comparisons
How big is 28408320?- 28,408,320 seconds is equal to 46 weeks, 6 days, 19 hours, 12 minutes.
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To count from 1 to 28,408,320 would take you about eighteen 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 28408320 cubic inches would be around 25.4 feet tall.
Recreational maths with 28408320
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