81330480
81,330,480 is an even composite number composed of six prime numbers multiplied together.
81330480 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred divisors.
Prime factorization of 81330480:
24 × 34 × 5 × 7 × 11 × 163
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 7 × 11 × 163)See below for interesting mathematical facts about the number 81330480 from the Numbermatics database.
Names of 81330480
- Cardinal: 81330480 can be written as Eighty-one million, three hundred thirty thousand, four hundred eighty.
Scientific notation
- Scientific notation: 8.133048 × 107
Factors of 81330480
Divisors of 81330480
- Number of divisors d(n): 400
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 20 21 22 24 27 28 30 33 35 36 40 42 44 45 48 54 55 56 60 63 66 70 72 77 80 81 84 88 90 99 105 108 110 112 120 126 132 135 140 144 154 162 163 165 168 176 180 189 198 210 216 220 231 240 252 264 270 280 297 308 315 324 326 330 336 360 378 385 396 405 420 432 440 462 489 495 504 528 540 560 567 594 616 630 648 652 660 693 720 756 770 792 810 815 840 880 891 924 945 978 990 1008 1080 1134 1141 1155 1188 1232 1260 1296 1304 1320 1386 1467 1485 1512 1540 1584 1620 1630 1680 1782 1793 1848 1890 1956 1980 2079 2160 2268 2282 2310 2376 2445 2520 2608 2640 2772 2835 2934 2970 3024 3080 3240 3260 3423 3465 3564 3586 3696 3780 3912 3960 4158 4401 4455 4536 4564 4620 4752 4890 5040 5379 5544 5670 5705 5868 5940 6160 6237 6480 6520 6846 6930 7128 7172 7335 7560 7824 7920 8316 8802 8910 8965 9072 9128 9240 9780 10269 10395 10758 11088 11340 11410 11736 11880 12474 12551 13040 13203 13692 13860 14256 14344 14670 15120 16137 16632 17115 17604 17820 17930 18256 18480 19560 20538 20790 21516 22005 22680 22820 23472 23760 24948 25102 26406 26895 27384 27720 28688 29340 30807 31185 32274 33264 34230 35208 35640 35860 37653 39120 41076 41580 43032 44010 45360 45640 48411 49896 50204 51345 52812 53790 54768 55440 58680 61614 62370 62755 64548 66015 68460 70416 71280 71720 75306 80685 82152 83160 86064 88020 91280 92421 96822 99792 100408 102690 105624 107580 112959 117360 123228 124740 125510 129096 132030 136920 143440 145233 150612 154035 161370 164304 166320 176040 184842 188265 193644 200816 205380 211248 215160 225918 242055 246456 249480 251020 258192 264060 273840 290466 301224 308070 322740 338877 352080 369684 376530 387288 410760 430320 451836 462105 484110 492912 498960 502040 528120 564795 580932 602448 616140 645480 677754 726165 739368 753060 774576 821520 903672 924210 968220 1004080 1016631 1056240 1129590 1161864 1232280 1290960 1355508 1452330 1478736 1506120 1694385 1807344 1848420 1936440 2033262 2259180 2323728 2464560 2711016 2904660 3012240 3388770 3696840 3872880 4066524 4518360 5083155 5422032 5809320 6777540 7393680 8133048 9036720 10166310 11618640 13555080 16266096 20332620 27110160 40665240 81330480
- Sum of all divisors σ(n): 354334464
- Sum of proper divisors (its aliquot sum) s(n): 273003984
- 81330480 is an abundant number, because the sum of its proper divisors (273003984) is greater than itself. Its abundance is 191673504
Bases of 81330480
- Binary: 1001101100100000001001100002
- Hexadecimal: 0x4D90130
- Base-36: 1CF700
Squares and roots of 81330480
- 81330480 squared (813304802) is 6614646977030400
- 81330480 cubed (813304803) is 537972413672431406592000
-
The
square root of 81330480 is 9018.3413109063 -
The
cube root of 81330480 is 433.2625104507
Scales and comparisons
How big is 81330480?- 81,330,480 seconds is equal to 2 years, 30 weeks, 3 days, 7 hours, 48 minutes.
-
To count from 1 to 81,330,480 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 81330480 cubic inches would be around 36.1 feet tall.
Recreational maths with 81330480
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