728480000
728,480,000 is an even composite number composed of four prime numbers multiplied together.
728480000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 728480000:
28 × 54 × 29 × 157
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5 × 29 × 157)See below for interesting mathematical facts about the number 728480000 from the Numbermatics database.
Names of 728480000
- Cardinal: 728480000 can be written as Seven hundred twenty-eight million, four hundred eighty thousand.
Scientific notation
- Scientific notation: 7.2848 × 108
Factors of 728480000
Divisors of 728480000
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 4 5 8 10 16 20 25 29 32 40 50 58 64 80 100 116 125 128 145 157 160 200 232 250 256 290 314 320 400 464 500 580 625 628 640 725 785 800 928 1000 1160 1250 1256 1280 1450 1570 1600 1856 2000 2320 2500 2512 2900 3140 3200 3625 3712 3925 4000 4553 4640 5000 5024 5800 6280 6400 7250 7424 7850 8000 9106 9280 10000 10048 11600 12560 14500 15700 16000 18125 18212 18560 19625 20000 20096 22765 23200 25120 29000 31400 32000 36250 36424 37120 39250 40000 40192 45530 46400 50240 58000 62800 72500 72848 78500 80000 91060 92800 98125 100480 113825 116000 125600 145000 145696 157000 160000 182120 185600 196250 200960 227650 232000 251200 290000 291392 314000 364240 392500 455300 464000 502400 569125 580000 582784 628000 728480 785000 910600 928000 1004800 1138250 1160000 1165568 1256000 1456960 1570000 1821200 2276500 2320000 2512000 2845625 2913920 3140000 3642400 4553000 4640000 5024000 5691250 5827840 6280000 7284800 9106000 11382500 12560000 14569600 18212000 22765000 25120000 29139200 36424000 45530000 72848000 91060000 145696000 182120000 364240000 728480000
- Sum of all divisors σ(n): 1891691340
- Sum of proper divisors (its aliquot sum) s(n): 1163211340
- 728480000 is an abundant number, because the sum of its proper divisors (1163211340) is greater than itself. Its abundance is 434731340
Bases of 728480000
- Binary: 1010110110101110111001000000002
- Hexadecimal: 0x2B6BB900
- Base-36: C1PURK
Squares and roots of 728480000
- 728480000 squared (7284800002) is 530683110400000000
- 728480000 cubed (7284800003) is 386592032264192000000000000
-
The
square root of 728480000 is 26990.3686525397 -
The
cube root of 728480000 is 899.7859573297
Scales and comparisons
How big is 728480000?- 728,480,000 seconds is equal to 23 years, 8 weeks, 3 days, 11 hours, 33 minutes, 20 seconds.
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To count from 1 to 728,480,000 would take you about thirty-four years!
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 728480000 cubic inches would be around 75 feet tall.
Recreational maths with 728480000
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