21137880
21,137,880 is an even composite number composed of six prime numbers multiplied together.
21137880 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 21137880:
23 × 3 × 5 × 19 × 73 × 127
(2 × 2 × 2 × 3 × 5 × 19 × 73 × 127)See below for interesting mathematical facts about the number 21137880 from the Numbermatics database.
Names of 21137880
- Cardinal: 21137880 can be written as Twenty-one million, one hundred thirty-seven thousand, eight hundred eighty.
Scientific notation
- Scientific notation: 2.113788 × 107
Factors of 21137880
Divisors of 21137880
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 19 20 24 30 38 40 57 60 73 76 95 114 120 127 146 152 190 219 228 254 285 292 365 380 381 438 456 508 570 584 635 730 760 762 876 1016 1095 1140 1270 1387 1460 1524 1752 1905 2190 2280 2413 2540 2774 2920 3048 3810 4161 4380 4826 5080 5548 6935 7239 7620 8322 8760 9271 9652 11096 12065 13870 14478 15240 16644 18542 19304 20805 24130 27740 27813 28956 33288 36195 37084 41610 46355 48260 55480 55626 57912 72390 74168 83220 92710 96520 111252 139065 144780 166440 176149 185420 222504 278130 289560 352298 370840 528447 556260 704596 880745 1056894 1112520 1409192 1761490 2113788 2642235 3522980 4227576 5284470 7045960 10568940 21137880
- Sum of all divisors σ(n): 68198400
- Sum of proper divisors (its aliquot sum) s(n): 47060520
- 21137880 is an abundant number, because the sum of its proper divisors (47060520) is greater than itself. Its abundance is 25922640
Bases of 21137880
- Binary: 10100001010001001110110002
- Hexadecimal: 0x14289D8
- Base-36: CL23C
Squares and roots of 21137880
- 21137880 squared (211378802) is 446809970894400
- 21137880 cubed (211378803) is 9444615547569319872000
-
The
square root of 21137880 is 4597.5950234879 -
The
cube root of 21137880 is 276.4949112181
Scales and comparisons
How big is 21137880?- 21,137,880 seconds is equal to 34 weeks, 6 days, 15 hours, 38 minutes.
-
To count from 1 to 21,137,880 would take you about two days!
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 21137880 cubic inches would be around 23 feet tall.
Recreational maths with 21137880
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The information we have on file for 21137880 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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