27997440
27,997,440 is an even composite number composed of five prime numbers multiplied together.
27997440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 27997440:
28 × 3 × 5 × 23 × 317
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 23 × 317)See below for interesting mathematical facts about the number 27997440 from the Numbermatics database.
Names of 27997440
- Cardinal: 27997440 can be written as Twenty-seven million, nine hundred ninety-seven thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.799744 × 107
Factors of 27997440
Divisors of 27997440
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 32 40 46 48 60 64 69 80 92 96 115 120 128 138 160 184 192 230 240 256 276 317 320 345 368 384 460 480 552 634 640 690 736 768 920 951 960 1104 1268 1280 1380 1472 1585 1840 1902 1920 2208 2536 2760 2944 3170 3680 3804 3840 4416 4755 5072 5520 5888 6340 7291 7360 7608 8832 9510 10144 11040 12680 14582 14720 15216 17664 19020 20288 21873 22080 25360 29164 29440 30432 36455 38040 40576 43746 44160 50720 58328 60864 72910 76080 81152 87492 88320 101440 109365 116656 121728 145820 152160 174984 202880 218730 233312 243456 291640 304320 349968 405760 437460 466624 583280 608640 699936 874920 933248 1166560 1217280 1399872 1749840 1866496 2333120 2799744 3499680 4666240 5599488 6999360 9332480 13998720 27997440
- Sum of all divisors σ(n): 93598848
- Sum of proper divisors (its aliquot sum) s(n): 65601408
- 27997440 is an abundant number, because the sum of its proper divisors (65601408) is greater than itself. Its abundance is 37603968
Bases of 27997440
- Binary: 11010101100110101000000002
- Hexadecimal: 0x1AB3500
- Base-36: GO2YO
Squares and roots of 27997440
- 27997440 squared (279974402) is 783856646553600
- 27997440 cubed (279974403) is 21945979430485622784000
-
The
square root of 27997440 is 5291.2607193371 -
The
cube root of 27997440 is 303.6496425391
Scales and comparisons
How big is 27997440?- 27,997,440 seconds is equal to 46 weeks, 2 days, 1 hour, 4 minutes.
-
To count from 1 to 27,997,440 would take you about seventeen 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 27997440 cubic inches would be around 25.3 feet tall.
Recreational maths with 27997440
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