640047996
640,047,996 is an even composite number composed of five prime numbers multiplied together.
640047996 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 640047996:
22 × 32 × 72 × 127 × 2857
(2 × 2 × 3 × 3 × 7 × 7 × 127 × 2857)See below for interesting mathematical facts about the number 640047996 from the Numbermatics database.
Names of 640047996
- Cardinal: 640047996 can be written as Six hundred forty million, forty-seven thousand, nine hundred ninety-six.
Scientific notation
- Scientific notation: 6.40047996 × 108
Factors of 640047996
Divisors of 640047996
- Number of divisors d(n): 108
-
Complete list of divisors:
1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 127 147 196 252 254 294 381 441 508 588 762 882 889 1143 1524 1764 1778 2286 2667 2857 3556 4572 5334 5714 6223 8001 8571 10668 11428 12446 16002 17142 18669 19999 24892 25713 32004 34284 37338 39998 51426 56007 59997 74676 79996 102852 112014 119994 139993 179991 224028 239988 279986 359982 362839 419979 559972 719964 725678 839958 1088517 1259937 1451356 1679916 2177034 2519874 2539873 3265551 4354068 5039748 5079746 6531102 7619619 10159492 13062204 15239238 17779111 22858857 30478476 35558222 45717714 53337333 71116444 91435428 106674666 160011999 213349332 320023998 640047996
- Sum of all divisors σ(n): 1897529088
- Sum of proper divisors (its aliquot sum) s(n): 1257481092
- 640047996 is an abundant number, because the sum of its proper divisors (1257481092) is greater than itself. Its abundance is 617433096
Bases of 640047996
- Binary: 1001100010011001011011011111002
- Hexadecimal: 0x26265B7C
- Base-36: AL2G70
Squares and roots of 640047996
- 640047996 squared (6400479962) is 409661437183616016
- 640047996 cubed (6400479963) is 262202981907853315074303936
-
The
square root of 640047996 is 25299.1698678039 -
The
cube root of 640047996 is 861.7954180257
Scales and comparisons
How big is 640047996?- 640,047,996 seconds is equal to 20 years, 18 weeks, 1 day, 23 hours, 6 minutes, 36 seconds.
-
To count from 1 to 640,047,996 would take you about thirty 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 640047996 cubic inches would be around 71.8 feet tall.
Recreational maths with 640047996
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