208890990
208,890,990 is an even composite number composed of seven prime numbers multiplied together.
208890990 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 208890990:
2 × 32 × 5 × 7 × 11 × 43 × 701
(2 × 3 × 3 × 5 × 7 × 11 × 43 × 701)See below for interesting mathematical facts about the number 208890990 from the Numbermatics database.
Names of 208890990
- Cardinal: 208890990 can be written as Two hundred eight million, eight hundred ninety thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.0889099 × 108
Factors of 208890990
Divisors of 208890990
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 5 6 7 9 10 11 14 15 18 21 22 30 33 35 42 43 45 55 63 66 70 77 86 90 99 105 110 126 129 154 165 198 210 215 231 258 301 315 330 385 387 430 462 473 495 602 630 645 693 701 770 774 903 946 990 1155 1290 1386 1402 1419 1505 1806 1935 2103 2310 2365 2709 2838 3010 3311 3465 3505 3870 4206 4257 4515 4730 4907 5418 6309 6622 6930 7010 7095 7711 8514 9030 9814 9933 10515 12618 13545 14190 14721 15422 16555 19866 21030 21285 23133 24535 27090 29442 29799 30143 31545 33110 38555 42570 44163 46266 49070 49665 53977 59598 60286 63090 69399 73605 77110 88326 90429 99330 107954 115665 138798 147210 148995 150715 161931 180858 211001 220815 231330 269885 271287 297990 301430 323862 331573 346995 422002 441630 452145 485793 539770 542574 633003 663146 693990 809655 904290 971586 994719 1055005 1266006 1356435 1619310 1657865 1899009 1989438 2110010 2321011 2428965 2712870 2984157 3165015 3315730 3798018 4642022 4857930 4973595 5968314 6330030 6963033 9495045 9947190 11605055 13926066 14920785 18990090 20889099 23210110 29841570 34815165 41778198 69630330 104445495 208890990
- Sum of all divisors σ(n): 693868032
- Sum of proper divisors (its aliquot sum) s(n): 484977042
- 208890990 is an abundant number, because the sum of its proper divisors (484977042) is greater than itself. Its abundance is 276086052
Bases of 208890990
- Binary: 11000111001101101100011011102
- Hexadecimal: 0xC736C6E
- Base-36: 3GD9BI
Squares and roots of 208890990
- 208890990 squared (2088909902) is 43635445703180100
- 208890990 cubed (2088909903) is 9115051452028537237299000
-
The
square root of 208890990 is 14453.0616133745 -
The
cube root of 208890990 is 593.3440195721
Scales and comparisons
How big is 208890990?- 208,890,990 seconds is equal to 6 years, 33 weeks, 2 days, 17 hours, 16 minutes, 30 seconds.
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To count from 1 to 208,890,990 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 208890990 cubic inches would be around 49.4 feet tall.
Recreational maths with 208890990
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