81031104
81,031,104 is an even composite number composed of five prime numbers multiplied together.
81031104 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred twenty divisors.
Prime factorization of 81031104:
26 × 34 × 72 × 11 × 29
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 7 × 7 × 11 × 29)See below for interesting mathematical facts about the number 81031104 from the Numbermatics database.
Names of 81031104
- Cardinal: 81031104 can be written as Eighty-one million, thirty-one thousand, one hundred four.
Scientific notation
- Scientific notation: 8.1031104 × 107
Factors of 81031104
Divisors of 81031104
- Number of divisors d(n): 420
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Complete list of divisors:
1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 29 32 33 36 42 44 48 49 54 56 58 63 64 66 72 77 81 84 87 88 96 98 99 108 112 116 126 132 144 147 154 162 168 174 176 189 192 196 198 203 216 224 231 232 252 261 264 288 294 297 308 319 324 336 348 352 378 392 396 406 432 441 448 462 464 504 522 528 539 567 576 588 594 609 616 638 648 672 693 696 704 756 783 784 792 812 864 882 891 924 928 957 1008 1044 1056 1078 1134 1176 1188 1218 1232 1276 1296 1323 1344 1386 1392 1421 1512 1566 1568 1584 1617 1624 1728 1764 1782 1827 1848 1856 1914 2016 2079 2088 2112 2156 2233 2268 2349 2352 2376 2436 2464 2552 2592 2646 2772 2784 2842 2871 3024 3132 3136 3168 3234 3248 3528 3564 3654 3696 3828 3969 4032 4158 4176 4263 4312 4466 4536 4698 4704 4752 4851 4872 4928 5104 5184 5292 5481 5544 5568 5684 5742 6048 6237 6264 6336 6468 6496 6699 7056 7128 7308 7392 7656 7938 8316 8352 8526 8613 8624 8932 9072 9396 9408 9504 9702 9744 10208 10584 10962 11088 11368 11484 12096 12474 12528 12789 12936 12992 13398 14112 14256 14553 14616 14784 15312 15631 15876 16443 16632 16704 17052 17226 17248 17864 18144 18792 19008 19404 19488 20097 20416 21168 21924 22176 22736 22968 24948 25056 25578 25839 25872 26796 28224 28512 29106 29232 30624 31262 31752 32886 33264 34104 34452 34496 35728 36288 37584 38367 38808 38976 40194 42336 43659 43848 44352 45472 45936 46893 49896 50112 51156 51678 51744 53592 57024 58212 58464 60291 61248 62524 63504 65772 66528 68208 68904 71456 75168 76734 77616 80388 84672 87318 87696 90944 91872 93786 99792 102312 103356 103488 107184 115101 116424 116928 120582 125048 127008 131544 133056 136416 137808 140679 142912 150336 153468 155232 160776 174636 175392 180873 183744 187572 199584 204624 206712 214368 230202 232848 241164 250096 254016 263088 272832 275616 281358 306936 310464 321552 349272 350784 361746 375144 399168 409248 413424 422037 428736 460404 465696 482328 500192 526176 551232 562716 613872 643104 698544 723492 750288 818496 826848 844074 920808 931392 964656 1000384 1052352 1125432 1227744 1266111 1286208 1397088 1446984 1500576 1653696 1688148 1841616 1929312 2250864 2455488 2532222 2794176 2893968 3001152 3376296 3683232 3858624 4501728 5064444 5787936 6752592 7366464 9003456 10128888 11575872 13505184 20257776 27010368 40515552 81031104
- Sum of all divisors σ(n): 315330840
- Sum of proper divisors (its aliquot sum) s(n): 234299736
- 81031104 is an abundant number, because the sum of its proper divisors (234299736) is greater than itself. Its abundance is 153268632
Bases of 81031104
- Binary: 1001101010001101111110000002
- Hexadecimal: 0x4D46FC0
- Base-36: 1C8S00
Squares and roots of 81031104
- 81031104 squared (810311042) is 6566039815458816
- 81031104 cubed (810311043) is 532053455154584127012864
-
The
square root of 81031104 is 9001.7278341439 -
The
cube root of 81031104 is 432.7302463883
Scales and comparisons
How big is 81031104?- 81,031,104 seconds is equal to 2 years, 29 weeks, 6 days, 20 hours, 38 minutes, 24 seconds.
-
To count from 1 to 81,031,104 would take you about three years!
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 81031104 cubic inches would be around 36.1 feet tall.
Recreational maths with 81031104
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