1640809728
1,640,809,728 is an even composite number composed of three prime numbers multiplied together.
1640809728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of fifty-four divisors.
Prime factorization of 1640809728:
28 × 32 × 712157
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 712157)See below for interesting mathematical facts about the number 1640809728 from the Numbermatics database.
Names of 1640809728
- Cardinal: 1640809728 can be written as One billion, six hundred forty million, eight hundred nine thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.640809728 × 109
Factors of 1640809728
Divisors of 1640809728
- Number of divisors d(n): 54
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 576 768 1152 2304 712157 1424314 2136471 2848628 4272942 5697256 6409413 8545884 11394512 12818826 17091768 22789024 25637652 34183536 45578048 51275304 68367072 91156096 102550608 136734144 182312192 205101216 273468288 410202432 546936576 820404864 1640809728
- Sum of all divisors σ(n): 4730865594
- Sum of proper divisors (its aliquot sum) s(n): 3090055866
- 1640809728 is an abundant number, because the sum of its proper divisors (3090055866) is greater than itself. Its abundance is 1449246138
Bases of 1640809728
- Binary: 11000011100110011000101000000002
- Hexadecimal: 0x61CCC500
- Base-36: R4W8W0
Squares and roots of 1640809728
- 1640809728 squared (16408097282) is 2692256563499433984
- 1640809728 cubed (16408097283) is 4417480759661721003440996352
-
The
square root of 1640809728 is 40506.9096328021 -
The
cube root of 1640809728 is 1179.4677595853
Scales and comparisons
How big is 1640809728?- 1,640,809,728 seconds is equal to 52 years, 8 weeks, 6 days, 20 hours, 28 minutes, 48 seconds.
-
To count from 1 to 1,640,809,728 would take you about one hundred 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 1640809728 cubic inches would be around 98.3 feet tall.
Recreational maths with 1640809728
- 1640809728 backwards is 8279080461
- The number of decimal digits it has is: 10
- The sum of 1640809728's digits is 45
- More coming soon!
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The information we have on file for 1640809728 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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