216490820
216,490,820 is an even composite number composed of five prime numbers multiplied together.
216490820 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 216490820:
22 × 5 × 72 × 13 × 16993
(2 × 2 × 5 × 7 × 7 × 13 × 16993)See below for interesting mathematical facts about the number 216490820 from the Numbermatics database.
Names of 216490820
- Cardinal: 216490820 can be written as Two hundred sixteen million, four hundred ninety thousand, eight hundred twenty.
Scientific notation
- Scientific notation: 2.1649082 × 108
Factors of 216490820
Divisors of 216490820
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 5 7 10 13 14 20 26 28 35 49 52 65 70 91 98 130 140 182 196 245 260 364 455 490 637 910 980 1274 1820 2548 3185 6370 12740 16993 33986 67972 84965 118951 169930 220909 237902 339860 441818 475804 594755 832657 883636 1104545 1189510 1546363 1665314 2209090 2379020 3092726 3330628 4163285 4418180 6185452 7731815 8326570 10824541 15463630 16653140 21649082 30927260 43298164 54122705 108245410 216490820
- Sum of all divisors σ(n): 569570904
- Sum of proper divisors (its aliquot sum) s(n): 353080084
- 216490820 is an abundant number, because the sum of its proper divisors (353080084) is greater than itself. Its abundance is 136589264
Bases of 216490820
- Binary: 11001110011101100011010001002
- Hexadecimal: 0xCE76344
- Base-36: 3KW5DW
Squares and roots of 216490820
- 216490820 squared (2164908202) is 46868275144272400
- 216490820 cubed (2164908203) is 10146551317969150179368000
-
The
square root of 216490820 is 14713.6270171565 -
The
cube root of 216490820 is 600.4541191693
Scales and comparisons
How big is 216490820?- 216,490,820 seconds is equal to 6 years, 45 weeks, 6 days, 16 hours, 20 minutes, 20 seconds.
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To count from 1 to 216,490,820 would take you about ten 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 216490820 cubic inches would be around 50 feet tall.
Recreational maths with 216490820
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