428256690
428,256,690 is an even composite number composed of six prime numbers multiplied together.
428256690 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 428256690:
2 × 3 × 5 × 17 × 73 × 11503
See below for interesting mathematical facts about the number 428256690 from the Numbermatics database.
Names of 428256690
- Cardinal: 428256690 can be written as Four hundred twenty-eight million, two hundred fifty-six thousand, six hundred ninety.
Scientific notation
- Scientific notation: 4.2825669 × 108
Factors of 428256690
Divisors of 428256690
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 15 17 30 34 51 73 85 102 146 170 219 255 365 438 510 730 1095 1241 2190 2482 3723 6205 7446 11503 12410 18615 23006 34509 37230 57515 69018 115030 172545 195551 345090 391102 586653 839719 977755 1173306 1679438 1955510 2519157 2933265 4198595 5038314 5866530 8397190 12595785 14275223 25191570 28550446 42825669 71376115 85651338 142752230 214128345 428256690
- Sum of all divisors σ(n): 1103279616
- Sum of proper divisors (its aliquot sum) s(n): 675022926
- 428256690 is an abundant number, because the sum of its proper divisors (675022926) is greater than itself. Its abundance is 246766236
Bases of 428256690
- Binary: 110011000011010101101101100102
- Hexadecimal: 0x1986ADB2
- Base-36: 72Z0Z6
Squares and roots of 428256690
- 428256690 squared (4282566902) is 183403792529756100
- 428256690 cubed (4282566903) is 78543901122240073893309000
-
The
square root of 428256690 is 20694.3637254205 -
The
cube root of 428256690 is 753.7628321097
Scales and comparisons
How big is 428256690?- 428,256,690 seconds is equal to 13 years, 32 weeks, 16 hours, 11 minutes, 30 seconds.
-
To count from 1 to 428,256,690 would take you about twenty 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 428256690 cubic inches would be around 62.8 feet tall.
Recreational maths with 428256690
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