21139272
21,139,272 is an even composite number composed of six prime numbers multiplied together.
21139272 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21139272:
23 × 33 × 7 × 11 × 31 × 41
(2 × 2 × 2 × 3 × 3 × 3 × 7 × 11 × 31 × 41)See below for interesting mathematical facts about the number 21139272 from the Numbermatics database.
Names of 21139272
- Cardinal: 21139272 can be written as Twenty-one million, one hundred thirty-nine thousand, two hundred seventy-two.
Scientific notation
- Scientific notation: 2.1139272 × 107
Factors of 21139272
Divisors of 21139272
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 4 6 7 8 9 11 12 14 18 21 22 24 27 28 31 33 36 41 42 44 54 56 62 63 66 72 77 82 84 88 93 99 108 123 124 126 132 154 164 168 186 189 198 216 217 231 246 248 252 264 279 287 297 308 328 341 369 372 378 396 434 451 462 492 504 558 574 594 616 651 682 693 738 744 756 792 837 861 868 902 924 984 1023 1107 1116 1148 1188 1271 1302 1353 1364 1386 1476 1512 1674 1722 1736 1804 1848 1953 2046 2079 2214 2232 2296 2376 2387 2542 2583 2604 2706 2728 2772 2952 3069 3157 3348 3444 3608 3813 3906 4059 4092 4158 4428 4774 5084 5166 5208 5412 5544 5859 6138 6314 6696 6888 7161 7626 7749 7812 8118 8184 8316 8856 8897 9207 9471 9548 10168 10332 10824 11439 11718 12177 12276 12628 13981 14322 15252 15498 15624 16236 16632 17794 18414 18942 19096 20664 21483 22878 23436 24354 24552 25256 26691 27962 28413 28644 30504 30996 32472 34317 35588 36828 37884 41943 42966 45756 46872 48708 53382 55924 56826 57288 61992 64449 68634 71176 73656 75768 80073 83886 85239 85932 91512 97416 97867 106764 111848 113652 125829 128898 137268 160146 167772 170478 171864 195734 213528 227304 240219 251658 257796 274536 293601 320292 335544 340956 377487 391468 480438 503316 515592 587202 640584 681912 754974 782936 880803 960876 1006632 1174404 1509948 1761606 1921752 2348808 2642409 3019896 3523212 5284818 7046424 10569636 21139272
- Sum of all divisors σ(n): 77414400
- Sum of proper divisors (its aliquot sum) s(n): 56275128
- 21139272 is an abundant number, because the sum of its proper divisors (56275128) is greater than itself. Its abundance is 35135856
Bases of 21139272
- Binary: 10100001010001111010010002
- Hexadecimal: 0x1428F48
- Base-36: CL360
Squares and roots of 21139272
- 21139272 squared (211392722) is 446868820689984
- 21139272 cubed (211392723) is 9446481548884799451648
-
The
square root of 21139272 is 4597.7464044899 -
The
cube root of 21139272 is 276.5009804561
Scales and comparisons
How big is 21139272?- 21,139,272 seconds is equal to 34 weeks, 6 days, 16 hours, 1 minute, 12 seconds.
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To count from 1 to 21,139,272 would take you about three 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 21139272 cubic inches would be around 23 feet tall.
Recreational maths with 21139272
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The information we have on file for 21139272 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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