138213940
138,213,940 is an even composite number composed of three prime numbers multiplied together.
138213940 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.
Prime factorization of 138213940:
22 × 5 × 6910697
(2 × 2 × 5 × 6910697)See below for interesting mathematical facts about the number 138213940 from the Numbermatics database.
Names of 138213940
- Cardinal: 138213940 can be written as One hundred thirty-eight million, two hundred thirteen thousand, nine hundred forty.
Scientific notation
- Scientific notation: 1.3821394 × 108
Factors of 138213940
Divisors of 138213940
Bases of 138213940
- Binary: 10000011110011111010001101002
- Hexadecimal: 0x83CFA34
- Base-36: 2AAEK4
Squares and roots of 138213940
- 138213940 squared (1382139402) is 19103093210323600
- 138213940 cubed (1382139403) is 2640313778786073430984000
-
The
square root of 138213940 is 11756.4424891205 -
The
cube root of 138213940 is 517.0318324963
Scales and comparisons
How big is 138213940?- 138,213,940 seconds is equal to 4 years, 20 weeks, 3 days, 16 hours, 45 minutes, 40 seconds.
-
To count from 1 to 138,213,940 would take you about six 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 138213940 cubic inches would be around 43.1 feet tall.
Recreational maths with 138213940
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