20697390
20,697,390 is an even composite number composed of six prime numbers multiplied together.
20697390 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 20697390:
2 × 33 × 5 × 7 × 47 × 233
(2 × 3 × 3 × 3 × 5 × 7 × 47 × 233)See below for interesting mathematical facts about the number 20697390 from the Numbermatics database.
Names of 20697390
- Cardinal: 20697390 can be written as Twenty million, six hundred ninety-seven thousand, three hundred ninety.
Scientific notation
- Scientific notation: 2.069739 × 107
Factors of 20697390
Divisors of 20697390
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 47 54 63 70 90 94 105 126 135 141 189 210 233 235 270 282 315 329 378 423 466 470 630 658 699 705 846 945 987 1165 1269 1398 1410 1631 1645 1890 1974 2097 2115 2330 2538 2961 3262 3290 3495 4194 4230 4893 4935 5922 6291 6345 6990 8155 8883 9786 9870 10485 10951 12582 12690 14679 14805 16310 17766 20970 21902 24465 29358 29610 31455 32853 44037 44415 48930 54755 62910 65706 73395 76657 88074 88830 98559 109510 146790 153314 164265 197118 220185 229971 295677 328530 383285 440370 459942 492795 591354 689913 766570 985590 1149855 1379826 1478385 2069739 2299710 2956770 3449565 4139478 6899130 10348695 20697390
- Sum of all divisors σ(n): 64696320
- Sum of proper divisors (its aliquot sum) s(n): 43998930
- 20697390 is an abundant number, because the sum of its proper divisors (43998930) is greater than itself. Its abundance is 23301540
Bases of 20697390
- Binary: 10011101111010001001011102
- Hexadecimal: 0x13BD12E
- Base-36: CBM7I
Squares and roots of 20697390
- 20697390 squared (206973902) is 428381952812100
- 20697390 cubed (206973903) is 8866388346313630419000
-
The
square root of 20697390 is 4549.4384268831 -
The
cube root of 20697390 is 274.5607975459
Scales and comparisons
How big is 20697390?- 20,697,390 seconds is equal to 34 weeks, 1 day, 13 hours, 16 minutes, 30 seconds.
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To count from 1 to 20,697,390 would take you about fifty-one 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 20697390 cubic inches would be around 22.9 feet tall.
Recreational maths with 20697390
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The information we have on file for 20697390 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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