39138930
39,138,930 is an even composite number composed of five prime numbers multiplied together.
39138930 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 39138930:
2 × 33 × 5 × 17 × 8527
(2 × 3 × 3 × 3 × 5 × 17 × 8527)See below for interesting mathematical facts about the number 39138930 from the Numbermatics database.
Names of 39138930
- Cardinal: 39138930 can be written as Thirty-nine million, one hundred thirty-eight thousand, nine hundred thirty.
Scientific notation
- Scientific notation: 3.913893 × 107
Factors of 39138930
Divisors of 39138930
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 5 6 9 10 15 17 18 27 30 34 45 51 54 85 90 102 135 153 170 255 270 306 459 510 765 918 1530 2295 4590 8527 17054 25581 42635 51162 76743 85270 127905 144959 153486 230229 255810 289918 383715 434877 460458 724795 767430 869754 1151145 1304631 1449590 2174385 2302290 2609262 3913893 4348770 6523155 7827786 13046310 19569465 39138930
- Sum of all divisors σ(n): 110522880
- Sum of proper divisors (its aliquot sum) s(n): 71383950
- 39138930 is an abundant number, because the sum of its proper divisors (71383950) is greater than itself. Its abundance is 32245020
Bases of 39138930
- Binary: 100101010100110110011100102
- Hexadecimal: 0x2553672
- Base-36: NAVSI
Squares and roots of 39138930
- 39138930 squared (391389302) is 1531855841544900
- 39138930 cubed (391389303) is 59955198552316932957000
-
The
square root of 39138930 is 6256.1114120515 -
The
cube root of 39138930 is 339.5233517037
Scales and comparisons
How big is 39138930?- 39,138,930 seconds is equal to 1 year, 12 weeks, 4 days, 23 hours, 55 minutes, 30 seconds.
-
To count from 1 to 39,138,930 would take you about forty-five 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 39138930 cubic inches would be around 28.3 feet tall.
Recreational maths with 39138930
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