20821387200
20,821,387,200 is an even composite number composed of five prime numbers multiplied together.
20821387200 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 20821387200:
26 × 3 × 52 × 449 × 9661
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 449 × 9661)See below for interesting mathematical facts about the number 20821387200 from the Numbermatics database.
Names of 20821387200
- Cardinal: 20821387200 can be written as Twenty billion, eight hundred twenty-one million, three hundred eighty-seven thousand, two hundred.
Scientific notation
- Scientific notation: 2.08213872 × 1010
Factors of 20821387200
Divisors of 20821387200
- Number of divisors d(n): 168
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 150 160 192 200 240 300 320 400 449 480 600 800 898 960 1200 1347 1600 1796 2245 2400 2694 3592 4490 4800 5388 6735 7184 8980 9661 10776 11225 13470 14368 17960 19322 21552 22450 26940 28736 28983 33675 35920 38644 43104 44900 48305 53880 57966 67350 71840 77288 86208 89800 96610 107760 115932 134700 143680 144915 154576 179600 193220 215520 231864 241525 269400 289830 309152 359200 386440 431040 463728 483050 538800 579660 618304 718400 724575 772880 927456 966100 1077600 1159320 1449150 1545760 1854912 1932200 2155200 2318640 2898300 3091520 3864400 4337789 4637280 5796600 7728800 8675578 9274560 11593200 13013367 15457600 17351156 21688945 23186400 26026734 34702312 43377890 46372800 52053468 65066835 69404624 86755780 104106936 108444725 130133670 138809248 173511560 208213872 216889450 260267340 277618496 325334175 347023120 416427744 433778900 520534680 650668350 694046240 832855488 867557800 1041069360 1301336700 1388092480 1735115600 2082138720 2602673400 3470231200 4164277440 5205346800 6940462400 10410693600 20821387200
- Sum of all divisors σ(n): 68470729200
- Sum of proper divisors (its aliquot sum) s(n): 47649342000
- 20821387200 is an abundant number, because the sum of its proper divisors (47649342000) is greater than itself. Its abundance is 26827954800
Bases of 20821387200
- Binary: 100110110010000110100100111110000002
- Hexadecimal: 0x4D90D27C0
- Base-36: 9KCIL6O
Squares and roots of 20821387200
- 20821387200 squared (208213872002) is 433530164932323840000
- 20821387200 cubed (208213872003) is 9026699426935776468430848000000
-
The
square root of 20821387200 is 144296.1787435829 -
The
cube root of 20821387200 is 2751.0800033447
Scales and comparisons
How big is 20821387200?- 20,821,387,200 seconds is equal to 662 years, 2 weeks, 6 days, 6 hours, 40 minutes.
-
To count from 1 to 20,821,387,200 would take you about one thousand, three hundred twenty-four 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 20821387200 cubic inches would be around 229.3 feet tall.
Recreational maths with 20821387200
- 20821387200 backwards is 00278312802
- The number of decimal digits it has is: 11
- The sum of 20821387200's digits is 33
- More coming soon!
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