208949920
208,949,920 is an even composite number composed of five prime numbers multiplied together.
208949920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 208949920:
25 × 5 × 31 × 103 × 409
(2 × 2 × 2 × 2 × 2 × 5 × 31 × 103 × 409)See below for interesting mathematical facts about the number 208949920 from the Numbermatics database.
Names of 208949920
- Cardinal: 208949920 can be written as Two hundred eight million, nine hundred forty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.0894992 × 108
Factors of 208949920
Divisors of 208949920
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 8 10 16 20 31 32 40 62 80 103 124 155 160 206 248 310 409 412 496 515 620 818 824 992 1030 1240 1636 1648 2045 2060 2480 3193 3272 3296 4090 4120 4960 6386 6544 8180 8240 12679 12772 13088 15965 16360 16480 25358 25544 31930 32720 42127 50716 51088 63395 63860 65440 84254 101432 102176 126790 127720 168508 202864 210635 253580 255440 337016 405728 421270 507160 510880 674032 842540 1014320 1305937 1348064 1685080 2028640 2611874 3370160 5223748 6529685 6740320 10447496 13059370 20894992 26118740 41789984 52237480 104474960 208949920
- Sum of all divisors σ(n): 515773440
- Sum of proper divisors (its aliquot sum) s(n): 306823520
- 208949920 is an abundant number, because the sum of its proper divisors (306823520) is greater than itself. Its abundance is 97873600
Bases of 208949920
- Binary: 11000111010001010010101000002
- Hexadecimal: 0xC7452A0
- Base-36: 3GEISG
Squares and roots of 208949920
- 208949920 squared (2089499202) is 43660069068006400
- 208949920 cubed (2089499203) is 9122767938954411839488000
-
The
square root of 208949920 is 14455.1001380135 -
The
cube root of 208949920 is 593.3998101953
Scales and comparisons
How big is 208949920?- 208,949,920 seconds is equal to 6 years, 33 weeks, 3 days, 9 hours, 38 minutes, 40 seconds.
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To count from 1 to 208,949,920 would take you about nine 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 208949920 cubic inches would be around 49.4 feet tall.
Recreational maths with 208949920
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