21425712
21,425,712 is an even composite number composed of six prime numbers multiplied together.
21425712 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21425712:
24 × 3 × 7 × 112 × 17 × 31
(2 × 2 × 2 × 2 × 3 × 7 × 11 × 11 × 17 × 31)See below for interesting mathematical facts about the number 21425712 from the Numbermatics database.
Names of 21425712
- Cardinal: 21425712 can be written as Twenty-one million, four hundred twenty-five thousand, seven hundred twelve.
Scientific notation
- Scientific notation: 2.1425712 × 107
Factors of 21425712
Divisors of 21425712
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 6 7 8 11 12 14 16 17 21 22 24 28 31 33 34 42 44 48 51 56 62 66 68 77 84 88 93 102 112 119 121 124 132 136 154 168 176 186 187 204 217 231 238 242 248 264 272 308 336 341 357 363 372 374 408 434 462 476 484 496 527 528 561 616 651 682 714 726 744 748 816 847 868 924 952 968 1023 1054 1122 1232 1302 1309 1364 1428 1452 1488 1496 1581 1694 1736 1848 1904 1936 2046 2057 2108 2244 2387 2541 2604 2618 2728 2856 2904 2992 3162 3388 3472 3689 3696 3751 3927 4092 4114 4216 4488 4774 5082 5208 5236 5456 5712 5797 5808 6171 6324 6776 7161 7378 7502 7854 8184 8228 8432 8976 9548 10164 10416 10472 11067 11253 11594 12342 12648 13552 14322 14399 14756 15004 15708 16368 16456 17391 19096 20328 20944 22134 22506 23188 24684 25296 26257 28644 28798 29512 30008 31416 32912 34782 38192 40579 40656 43197 44268 45012 46376 49368 52514 57288 57596 59024 60016 62832 63767 69564 78771 81158 86394 88536 90024 92752 98736 105028 114576 115192 121737 127534 139128 157542 162316 172788 177072 180048 191301 210056 230384 243474 255068 278256 315084 324632 345576 382602 420112 446369 486948 510136 630168 649264 691152 765204 892738 973896 1020272 1260336 1339107 1530408 1785476 1947792 2678214 3060816 3570952 5356428 7141904 10712856 21425712
- Sum of all divisors σ(n): 75995136
- Sum of proper divisors (its aliquot sum) s(n): 54569424
- 21425712 is an abundant number, because the sum of its proper divisors (54569424) is greater than itself. Its abundance is 33143712
Bases of 21425712
- Binary: 10100011011101110001100002
- Hexadecimal: 0x146EE30
- Base-36: CR86O
Squares and roots of 21425712
- 21425712 squared (214257122) is 459061134706944
- 21425712 cubed (214257123) is 9835711662624186544128
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The
square root of 21425712 is 4628.7916349735 -
The
cube root of 21425712 is 277.7442569803
Scales and comparisons
How big is 21425712?- 21,425,712 seconds is equal to 35 weeks, 2 days, 23 hours, 35 minutes, 12 seconds.
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To count from 1 to 21,425,712 would take you about twenty-three 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 21425712 cubic inches would be around 23.1 feet tall.
Recreational maths with 21425712
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