30990840
30,990,840 is an even composite number composed of five prime numbers multiplied together.
30990840 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 30990840:
23 × 3 × 5 × 101 × 2557
(2 × 2 × 2 × 3 × 5 × 101 × 2557)See below for interesting mathematical facts about the number 30990840 from the Numbermatics database.
Names of 30990840
- Cardinal: 30990840 can be written as Thirty million, nine hundred ninety thousand, eight hundred forty.
Scientific notation
- Scientific notation: 3.099084 × 107
Factors of 30990840
Divisors of 30990840
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 101 120 202 303 404 505 606 808 1010 1212 1515 2020 2424 2557 3030 4040 5114 6060 7671 10228 12120 12785 15342 20456 25570 30684 38355 51140 61368 76710 102280 153420 258257 306840 516514 774771 1033028 1291285 1549542 2066056 2582570 3099084 3873855 5165140 6198168 7747710 10330280 15495420 30990840
- Sum of all divisors σ(n): 93929760
- Sum of proper divisors (its aliquot sum) s(n): 62938920
- 30990840 is an abundant number, because the sum of its proper divisors (62938920) is greater than itself. Its abundance is 31948080
Bases of 30990840
- Binary: 11101100011100001111110002
- Hexadecimal: 0x1D8E1F8
- Base-36: IG8OO
Squares and roots of 30990840
- 30990840 squared (309908402) is 960432163905600
- 30990840 cubed (309908403) is 29764599522452224704000
-
The
square root of 30990840 is 5566.9417097721 -
The
cube root of 30990840 is 314.1071212807
Scales and comparisons
How big is 30990840?- 30,990,840 seconds is equal to 51 weeks, 1 day, 16 hours, 34 minutes.
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To count from 1 to 30,990,840 would take you about twenty-four 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 30990840 cubic inches would be around 26.2 feet tall.
Recreational maths with 30990840
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The information we have on file for 30990840 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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