21470085
21,470,085 is an odd composite number composed of five prime numbers multiplied together.
21470085 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21470085:
32 × 5 × 73 × 13 × 107
(3 × 3 × 5 × 7 × 7 × 7 × 13 × 107)See below for interesting mathematical facts about the number 21470085 from the Numbermatics database.
Names of 21470085
- Cardinal: 21470085 can be written as Twenty-one million, four hundred seventy thousand and eighty-five.
Scientific notation
- Scientific notation: 2.1470085 × 107
Factors of 21470085
Divisors of 21470085
- Number of divisors d(n): 96
-
Complete list of divisors:
1 3 5 7 9 13 15 21 35 39 45 49 63 65 91 105 107 117 147 195 245 273 315 321 343 441 455 535 585 637 735 749 819 963 1029 1365 1391 1605 1715 1911 2205 2247 3087 3185 3745 4095 4173 4459 4815 5145 5243 5733 6741 6955 9555 9737 11235 12519 13377 15435 15729 20865 22295 26215 28665 29211 33705 36701 40131 47187 48685 62595 66885 68159 78645 87633 110103 146055 183505 200655 204477 235935 330309 340795 438165 477113 550515 613431 1022385 1431339 1651545 2385565 3067155 4294017 7156695 21470085
- Sum of all divisors σ(n): 47174400
- Sum of proper divisors (its aliquot sum) s(n): 25704315
- 21470085 is an abundant number, because the sum of its proper divisors (25704315) is greater than itself. Its abundance is 4234230
Bases of 21470085
- Binary: 10100011110011011100001012
- Hexadecimal: 0x1479B85
- Base-36: CS6F9
Squares and roots of 21470085
- 21470085 squared (214700852) is 460964549907225
- 21470085 cubed (214700853) is 9896948068494862864125
-
The
square root of 21470085 is 4633.5823074593 -
The
cube root of 21470085 is 277.9358624015
Scales and comparisons
How big is 21470085?- 21,470,085 seconds is equal to 35 weeks, 3 days, 11 hours, 54 minutes, 45 seconds.
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To count from 1 to 21,470,085 would take you about seventeen hours!
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 21470085 cubic inches would be around 23.2 feet tall.
Recreational maths with 21470085
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