21140388
21,140,388 is an even composite number composed of five prime numbers multiplied together.
21140388 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21140388:
22 × 32 × 19 × 31 × 997
(2 × 2 × 3 × 3 × 19 × 31 × 997)See below for interesting mathematical facts about the number 21140388 from the Numbermatics database.
Names of 21140388
- Cardinal: 21140388 can be written as Twenty-one million, one hundred forty thousand, three hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1140388 × 107
Factors of 21140388
Divisors of 21140388
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 9 12 18 19 31 36 38 57 62 76 93 114 124 171 186 228 279 342 372 558 589 684 997 1116 1178 1767 1994 2356 2991 3534 3988 5301 5982 7068 8973 10602 11964 17946 18943 21204 30907 35892 37886 56829 61814 75772 92721 113658 123628 170487 185442 227316 278163 340974 370884 556326 587233 681948 1112652 1174466 1761699 2348932 3523398 5285097 7046796 10570194 21140388
- Sum of all divisors σ(n): 58123520
- Sum of proper divisors (its aliquot sum) s(n): 36983132
- 21140388 is an abundant number, because the sum of its proper divisors (36983132) is greater than itself. Its abundance is 15842744
Bases of 21140388
- Binary: 10100001010010011101001002
- Hexadecimal: 0x14293A4
- Base-36: CL410
Squares and roots of 21140388
- 21140388 squared (211403882) is 446916004790544
- 21140388 cubed (211403883) is 9447977744681958891072
-
The
square root of 21140388 is 4597.8677666937 -
The
cube root of 21140388 is 276.5058461181
Scales and comparisons
How big is 21140388?- 21,140,388 seconds is equal to 34 weeks, 6 days, 16 hours, 19 minutes, 48 seconds.
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To count from 1 to 21,140,388 would take you about three days!
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 21140388 cubic inches would be around 23 feet tall.
Recreational maths with 21140388
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The information we have on file for 21140388 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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