20809920
20,809,920 is an even composite number composed of five prime numbers multiplied together.
20809920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 20809920:
26 × 3 × 5 × 53 × 409
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 53 × 409)See below for interesting mathematical facts about the number 20809920 from the Numbermatics database.
Names of 20809920
- Cardinal: 20809920 can be written as Twenty million, eight hundred nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.080992 × 107
Factors of 20809920
Divisors of 20809920
- Number of divisors d(n): 112
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 53 60 64 80 96 106 120 159 160 192 212 240 265 318 320 409 424 480 530 636 795 818 848 960 1060 1227 1272 1590 1636 1696 2045 2120 2454 2544 3180 3272 3392 4090 4240 4908 5088 6135 6360 6544 8180 8480 9816 10176 12270 12720 13088 16360 16960 19632 21677 24540 25440 26176 32720 39264 43354 49080 50880 65031 65440 78528 86708 98160 108385 130062 130880 173416 196320 216770 260124 325155 346832 392640 433540 520248 650310 693664 867080 1040496 1300620 1387328 1734160 2080992 2601240 3468320 4161984 5202480 6936640 10404960 20809920
- Sum of all divisors σ(n): 67482720
- Sum of proper divisors (its aliquot sum) s(n): 46672800
- 20809920 is an abundant number, because the sum of its proper divisors (46672800) is greater than itself. Its abundance is 25862880
Bases of 20809920
- Binary: 10011110110001000110000002
- Hexadecimal: 0x13D88C0
- Base-36: CE11C
Squares and roots of 20809920
- 20809920 squared (208099202) is 433052770406400
- 20809920 cubed (208099203) is 9011793507935551488000
-
The
square root of 20809920 is 4561.7891227017 -
The
cube root of 20809920 is 275.0574866045
Scales and comparisons
How big is 20809920?- 20,809,920 seconds is equal to 34 weeks, 2 days, 20 hours, 32 minutes.
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To count from 1 to 20,809,920 would take you about fifty-one 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 20809920 cubic inches would be around 22.9 feet tall.
Recreational maths with 20809920
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The information we have on file for 20809920 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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