12138766720
12,138,766,720 is an even composite number composed of four prime numbers multiplied together.
12138766720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 12138766720:
27 × 5 × 31 × 611833
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 31 × 611833)See below for interesting mathematical facts about the number 12138766720 from the Numbermatics database.
Names of 12138766720
- Cardinal: 12138766720 can be written as Twelve billion, one hundred thirty-eight million, seven hundred sixty-six thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.213876672 × 1010
Factors of 12138766720
Divisors of 12138766720
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 5 8 10 16 20 31 32 40 62 64 80 124 128 155 160 248 310 320 496 620 640 992 1240 1984 2480 3968 4960 9920 19840 611833 1223666 2447332 3059165 4894664 6118330 9789328 12236660 18966823 19578656 24473320 37933646 39157312 48946640 75867292 78314624 94834115 97893280 151734584 189668230 195786560 303469168 379336460 391573120 606938336 758672920 1213876672 1517345840 2427753344 3034691680 6069383360 12138766720
- Sum of all divisors σ(n): 29955392640
- Sum of proper divisors (its aliquot sum) s(n): 17816625920
- 12138766720 is an abundant number, because the sum of its proper divisors (17816625920) is greater than itself. Its abundance is 5677859200
Bases of 12138766720
- Binary: 10110100111000011011100001100000002
- Hexadecimal: 0x2D386E180
- Base-36: 5KR3WCG
Squares and roots of 12138766720
- 12138766720 squared (121387667202) is 147349657482579558400
- 12138766720 cubed (121387667203) is 1788643118452935723258216448000
-
The
square root of 12138766720 is 110176.0714492943 -
The
cube root of 12138766720 is 2298.2195874951
Scales and comparisons
How big is 12138766720?- 12,138,766,720 seconds is equal to 385 years, 50 weeks, 4 days, 23 hours, 38 minutes, 40 seconds.
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To count from 1 to 12,138,766,720 would take you about seven hundred seventy-one 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 12138766720 cubic inches would be around 191.5 feet tall.
Recreational maths with 12138766720
- 12138766720 backwards is 02766783121
- The number of decimal digits it has is: 11
- The sum of 12138766720's digits is 43
- More coming soon!
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