20978320
20,978,320 is an even composite number composed of five prime numbers multiplied together.
20978320 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 20978320:
24 × 5 × 11 × 31 × 769
(2 × 2 × 2 × 2 × 5 × 11 × 31 × 769)See below for interesting mathematical facts about the number 20978320 from the Numbermatics database.
Names of 20978320
- Cardinal: 20978320 can be written as Twenty million, nine hundred seventy-eight thousand, three hundred twenty.
Scientific notation
- Scientific notation: 2.097832 × 107
Factors of 20978320
Divisors of 20978320
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 31 40 44 55 62 80 88 110 124 155 176 220 248 310 341 440 496 620 682 769 880 1240 1364 1538 1705 2480 2728 3076 3410 3845 5456 6152 6820 7690 8459 12304 13640 15380 16918 23839 27280 30760 33836 42295 47678 61520 67672 84590 95356 119195 135344 169180 190712 238390 262229 338360 381424 476780 524458 676720 953560 1048916 1311145 1907120 2097832 2622290 4195664 5244580 10489160 20978320
- Sum of all divisors σ(n): 54996480
- Sum of proper divisors (its aliquot sum) s(n): 34018160
- 20978320 is an abundant number, because the sum of its proper divisors (34018160) is greater than itself. Its abundance is 13039840
Bases of 20978320
- Binary: 10100000000011010100100002
- Hexadecimal: 0x1401A90
- Base-36: CHMZ4
Squares and roots of 20978320
- 20978320 squared (209783202) is 440089910022400
- 20978320 cubed (209783203) is 9232346961221114368000
-
The
square root of 20978320 is 4580.2096021907 -
The
cube root of 20978320 is 275.7974429217
Scales and comparisons
How big is 20978320?- 20,978,320 seconds is equal to 34 weeks, 4 days, 19 hours, 18 minutes, 40 seconds.
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To count from 1 to 20,978,320 would take you about four hours!
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 20978320 cubic inches would be around 23 feet tall.
Recreational maths with 20978320
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The information we have on file for 20978320 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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