8420139
8,420,139 is an odd composite number composed of five prime numbers multiplied together.
8420139 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 8420139:
33 × 7 × 13 × 23 × 149
(3 × 3 × 3 × 7 × 13 × 23 × 149)See below for interesting mathematical facts about the number 8420139 from the Numbermatics database.
Names of 8420139
- Cardinal: 8420139 can be written as Eight million, four hundred twenty thousand, one hundred thirty-nine.
Scientific notation
- Scientific notation: 8.420139 × 106
Factors of 8420139
Divisors of 8420139
- Number of divisors d(n): 64
-
Complete list of divisors:
1 3 7 9 13 21 23 27 39 63 69 91 117 149 161 189 207 273 299 351 447 483 621 819 897 1043 1341 1449 1937 2093 2457 2691 3129 3427 4023 4347 5811 6279 8073 9387 10281 13559 17433 18837 23989 28161 30843 40677 44551 52299 56511 71967 92529 122031 133653 215901 311857 366093 400959 647703 935571 1202877 2806713 8420139
- Sum of all divisors σ(n): 16128000
- Sum of proper divisors (its aliquot sum) s(n): 7707861
- 8420139 is a deficient number, because the sum of its proper divisors (7707861) is less than itself. Its deficiency is 712278
Bases of 8420139
- Binary: 1000000001111011001010112
- Hexadecimal: 0x807B2B
- Base-36: 50H0R
Squares and roots of 8420139
- 8420139 squared (84201392) is 70898740779321
- 8420139 cubed (84201393) is 596977252286851145619
-
The
square root of 8420139 is 2901.7475768921 -
The
cube root of 8420139 is 203.4415957255
Scales and comparisons
How big is 8420139?- 8,420,139 seconds is equal to 13 weeks, 6 days, 10 hours, 55 minutes, 39 seconds.
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To count from 1 to 8,420,139 would take you about twenty weeks!
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 8420139 cubic inches would be around 17 feet tall.
Recreational maths with 8420139
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The information we have on file for 8420139 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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