31997980
31,997,980 is an even composite number composed of five prime numbers multiplied together.
31997980 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 31997980:
22 × 5 × 72 × 103 × 317
(2 × 2 × 5 × 7 × 7 × 103 × 317)See below for interesting mathematical facts about the number 31997980 from the Numbermatics database.
Names of 31997980
- Cardinal: 31997980 can be written as Thirty-one million, nine hundred ninety-seven thousand, nine hundred eighty.
Scientific notation
- Scientific notation: 3.199798 × 107
Factors of 31997980
Divisors of 31997980
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 5 7 10 14 20 28 35 49 70 98 103 140 196 206 245 317 412 490 515 634 721 980 1030 1268 1442 1585 2060 2219 2884 3170 3605 4438 5047 6340 7210 8876 10094 11095 14420 15533 20188 22190 25235 31066 32651 44380 50470 62132 65302 77665 100940 130604 155330 163255 228557 310660 326510 457114 653020 914228 1142785 1599899 2285570 3199798 4571140 6399596 7999495 15998990 31997980
- Sum of all divisors σ(n): 79174368
- Sum of proper divisors (its aliquot sum) s(n): 47176388
- 31997980 is an abundant number, because the sum of its proper divisors (47176388) is greater than itself. Its abundance is 15178408
Bases of 31997980
- Binary: 11110100001000000000111002
- Hexadecimal: 0x1E8401C
- Base-36: J1TSS
Squares and roots of 31997980
- 31997980 squared (319979802) is 1023870724080400
- 31997980 cubed (319979803) is 32761794951710157592000
-
The
square root of 31997980 is 5656.6757022123 -
The
cube root of 31997980 is 317.4735299403
Scales and comparisons
How big is 31997980?- 31,997,980 seconds is equal to 1 year, 6 days, 8 hours, 19 minutes, 40 seconds.
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To count from 1 to 31,997,980 would take you about twenty-seven 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 31997980 cubic inches would be around 26.5 feet tall.
Recreational maths with 31997980
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The information we have on file for 31997980 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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