81132480
81,132,480 is an even composite number composed of six prime numbers multiplied together.
81132480 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred thirty-six divisors.
Prime factorization of 81132480:
26 × 32 × 5 × 11 × 13 × 197
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 11 × 13 × 197)See below for interesting mathematical facts about the number 81132480 from the Numbermatics database.
Names of 81132480
- Cardinal: 81132480 can be written as Eighty-one million, one hundred thirty-two thousand, four hundred eighty.
Scientific notation
- Scientific notation: 8.113248 × 107
Factors of 81132480
Divisors of 81132480
- Number of divisors d(n): 336
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 11 12 13 15 16 18 20 22 24 26 30 32 33 36 39 40 44 45 48 52 55 60 64 65 66 72 78 80 88 90 96 99 104 110 117 120 130 132 143 144 156 160 165 176 180 192 195 197 198 208 220 234 240 260 264 286 288 312 320 330 352 360 390 394 396 416 429 440 468 480 495 520 528 572 576 585 591 624 660 704 715 720 780 788 792 832 858 880 936 960 985 990 1040 1056 1144 1170 1182 1248 1287 1320 1430 1440 1560 1576 1584 1716 1760 1773 1872 1970 1980 2080 2112 2145 2167 2288 2340 2364 2496 2561 2574 2640 2860 2880 2955 3120 3152 3168 3432 3520 3546 3744 3940 3960 4160 4290 4334 4576 4680 4728 5122 5148 5280 5720 5910 6240 6304 6336 6435 6501 6864 7092 7488 7683 7880 7920 8580 8668 8865 9152 9360 9456 10244 10296 10560 10835 11440 11820 12480 12608 12805 12870 13002 13728 14184 15366 15760 15840 17160 17336 17730 18720 18912 19503 20488 20592 21670 22880 23049 23640 25610 25740 26004 27456 28171 28368 30732 31520 31680 32505 34320 34672 35460 37440 37824 38415 39006 40976 41184 43340 45760 46098 47280 51220 51480 52008 56342 56736 61464 63040 65010 68640 69344 70920 76830 78012 81952 82368 84513 86680 92196 94560 97515 102440 102960 104016 112684 113472 115245 122928 130020 137280 138688 140855 141840 153660 156024 163904 169026 173360 184392 189120 195030 204880 205920 208032 225368 230490 245856 253539 260040 281710 283680 307320 312048 338052 346720 368784 390060 409760 411840 416064 422565 450736 460980 491712 507078 520080 563420 567360 614640 624096 676104 693440 737568 780120 819520 845130 901472 921960 1014156 1040160 1126840 1229280 1248192 1267695 1352208 1475136 1560240 1690260 1802944 1843920 2028312 2080320 2253680 2458560 2535390 2704416 3120480 3380520 3687840 4056624 4507360 5070780 5408832 6240960 6761040 7375680 8113248 9014720 10141560 13522080 16226496 20283120 27044160 40566240 81132480
- Sum of all divisors σ(n): 329513184
- Sum of proper divisors (its aliquot sum) s(n): 248380704
- 81132480 is an abundant number, because the sum of its proper divisors (248380704) is greater than itself. Its abundance is 167248224
Bases of 81132480
- Binary: 1001101010111111011110000002
- Hexadecimal: 0x4D5FBC0
- Base-36: 1CAY80
Squares and roots of 81132480
- 81132480 squared (811324802) is 6582479310950400
- 81132480 cubed (811324803) is 534052871046097108992000
-
The
square root of 81132480 is 9007.3569930363 -
The
cube root of 81132480 is 432.9106305361
Scales and comparisons
How big is 81132480?- 81,132,480 seconds is equal to 2 years, 30 weeks, 1 day, 48 minutes.
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To count from 1 to 81,132,480 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 81132480 cubic inches would be around 36.1 feet tall.
Recreational maths with 81132480
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