20509920
20,509,920 is an even composite number composed of four prime numbers multiplied together.
20509920 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 20509920:
25 × 32 × 5 × 14243
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 14243)See below for interesting mathematical facts about the number 20509920 from the Numbermatics database.
Names of 20509920
- Cardinal: 20509920 can be written as Twenty million, five hundred nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.050992 × 107
Factors of 20509920
Divisors of 20509920
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 14243 28486 42729 56972 71215 85458 113944 128187 142430 170916 213645 227888 256374 284860 341832 427290 455776 512748 569720 640935 683664 854580 1025496 1139440 1281870 1367328 1709160 2050992 2278880 2563740 3418320 4101984 5127480 6836640 10254960 20509920
- Sum of all divisors σ(n): 69995016
- Sum of proper divisors (its aliquot sum) s(n): 49485096
- 20509920 is an abundant number, because the sum of its proper divisors (49485096) is greater than itself. Its abundance is 28975176
Bases of 20509920
- Binary: 10011100011110100111000002
- Hexadecimal: 0x138F4E0
- Base-36: C7LK0
Squares and roots of 20509920
- 20509920 squared (205099202) is 420656818406400
- 20509920 cubed (205099203) is 8627637692969791488000
-
The
square root of 20509920 is 4528.7879173129 -
The
cube root of 20509920 is 273.7293222637
Scales and comparisons
How big is 20509920?- 20,509,920 seconds is equal to 33 weeks, 6 days, 9 hours, 12 minutes.
-
To count from 1 to 20,509,920 would take you about fifty weeks!
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 20509920 cubic inches would be around 22.8 feet tall.
Recreational maths with 20509920
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The information we have on file for 20509920 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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