21293280
21,293,280 is an even composite number composed of five prime numbers multiplied together.
21293280 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21293280:
25 × 34 × 5 × 31 × 53
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 31 × 53)See below for interesting mathematical facts about the number 21293280 from the Numbermatics database.
Names of 21293280
- Cardinal: 21293280 can be written as Twenty-one million, two hundred ninety-three thousand, two hundred eighty.
Scientific notation
- Scientific notation: 2.129328 × 107
Factors of 21293280
Divisors of 21293280
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 31 32 36 40 45 48 53 54 60 62 72 80 81 90 93 96 106 108 120 124 135 144 155 159 160 162 180 186 212 216 240 248 265 270 279 288 310 318 324 360 372 405 424 432 465 477 480 496 530 540 558 620 636 648 720 744 795 810 837 848 864 930 954 992 1060 1080 1116 1240 1272 1296 1395 1431 1440 1488 1590 1620 1643 1674 1696 1860 1908 2120 2160 2232 2385 2480 2511 2544 2592 2790 2862 2976 3180 3240 3286 3348 3720 3816 4185 4240 4293 4320 4464 4770 4929 4960 5022 5088 5580 5724 6360 6480 6572 6696 7155 7440 7632 8215 8370 8480 8586 8928 9540 9858 10044 11160 11448 12555 12720 12960 13144 13392 14310 14787 14880 15264 16430 16740 17172 19080 19716 20088 21465 22320 22896 24645 25110 25440 26288 26784 28620 29574 32860 33480 34344 38160 39432 40176 42930 44361 44640 45792 49290 50220 52576 57240 59148 65720 66960 68688 73935 76320 78864 80352 85860 88722 98580 100440 114480 118296 131440 133083 133920 137376 147870 157728 171720 177444 197160 200880 221805 228960 236592 262880 266166 295740 343440 354888 394320 401760 443610 473184 532332 591480 665415 686880 709776 788640 887220 1064664 1182960 1330830 1419552 1774440 2129328 2365920 2661660 3548880 4258656 5323320 7097760 10646640 21293280
- Sum of all divisors σ(n): 79035264
- Sum of proper divisors (its aliquot sum) s(n): 57741984
- 21293280 is an abundant number, because the sum of its proper divisors (57741984) is greater than itself. Its abundance is 36448704
Bases of 21293280
- Binary: 10100010011101000111000002
- Hexadecimal: 0x144E8E0
- Base-36: COE00
Squares and roots of 21293280
- 21293280 squared (212932802) is 453403773158400
- 21293280 cubed (212932803) is 9654453494918295552000
-
The
square root of 21293280 is 4614.4642159195 -
The
cube root of 21293280 is 277.1708295611
Scales and comparisons
How big is 21293280?- 21,293,280 seconds is equal to 35 weeks, 1 day, 10 hours, 48 minutes.
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To count from 1 to 21,293,280 would take you about five 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 21293280 cubic inches would be around 23.1 feet tall.
Recreational maths with 21293280
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The information we have on file for 21293280 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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