1997989994
1,997,989,994 is an even composite number composed of five prime numbers multiplied together.
1997989994 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 1997989994:
2 × 72 × 112 × 132 × 997
(2 × 7 × 7 × 11 × 11 × 13 × 13 × 997)See below for interesting mathematical facts about the number 1997989994 from the Numbermatics database.
Names of 1997989994
- Cardinal: 1997989994 can be written as One billion, nine hundred ninety-seven million, nine hundred eighty-nine thousand, nine hundred ninety-four.
Scientific notation
- Scientific notation: 1.997989994 × 109
Factors of 1997989994
Divisors of 1997989994
- Number of divisors d(n): 108
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Complete list of divisors:
1 2 7 11 13 14 22 26 49 77 91 98 121 143 154 169 182 242 286 338 539 637 847 997 1001 1078 1183 1274 1573 1694 1859 1994 2002 2366 3146 3718 5929 6979 7007 8281 10967 11011 11858 12961 13013 13958 14014 16562 20449 21934 22022 25922 26026 40898 48853 76769 77077 90727 91091 97706 120637 142571 143143 153538 154154 168493 181454 182182 241274 285142 286286 336986 537383 635089 844459 997997 1002001 1074766 1179451 1270178 1568281 1688918 1853423 1995994 2004002 2358902 3136562 3706846 5911213 6985979 8256157 10977967 11822426 12973961 13971958 16512314 20387653 21955934 25947922 40775306 76845769 90817727 142713571 153691538 181635454 285427142 998994997 1997989994
- Sum of all divisors σ(n): 4153645062
- Sum of proper divisors (its aliquot sum) s(n): 2155655068
- 1997989994 is an abundant number, because the sum of its proper divisors (2155655068) is greater than itself. Its abundance is 157665074
Bases of 1997989994
- Binary: 11101110001011011101000011010102
- Hexadecimal: 0x7716E86A
- Base-36: X1JUY2
Squares and roots of 1997989994
- 1997989994 squared (19979899942) is 3991964016124120036
- 1997989994 cubed (19979899943) is 7975904160624046493982919784
-
The
square root of 1997989994 is 44698.8813506557 -
The
cube root of 1997989994 is 1259.4988336087
Scales and comparisons
How big is 1997989994?- 1,997,989,994 seconds is equal to 63 years, 27 weeks, 3 days, 21 hours, 13 minutes, 14 seconds.
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To count from 1 to 1,997,989,994 would take you about one hundred twenty-seven 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 1997989994 cubic inches would be around 105 feet tall.
Recreational maths with 1997989994
- 1997989994 backwards is 4999897991
- The number of decimal digits it has is: 10
- The sum of 1997989994's digits is 74
- More coming soon!
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The information we have on file for 1997989994 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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