81323550720
81,323,550,720 is an even composite number composed of six prime numbers multiplied together.
81323550720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of seven hundred sixty-eight divisors.
Prime factorization of 81323550720:
211 × 33 × 5 × 19 × 113 × 137
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 19 × 113 × 137)See below for interesting mathematical facts about the number 81323550720 from the Numbermatics database.
Names of 81323550720
- Cardinal: 81323550720 can be written as Eighty-one billion, three hundred twenty-three million, five hundred fifty thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 8.132355072 × 1010
Factors of 81323550720
Divisors of 81323550720
- Number of divisors d(n): 768
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 27 30 32 36 38 40 45 48 54 57 60 64 72 76 80 90 95 96 108 113 114 120 128 135 137 144 152 160 171 180 190 192 216 226 228 240 256 270 274 285 288 304 320 339 342 360 380 384 411 432 452 456 480 512 513 540 548 565 570 576 608 640 678 684 685 720 760 768 822 855 864 904 912 960 1017 1024 1026 1080 1096 1130 1140 1152 1216 1233 1280 1356 1368 1370 1440 1520 1536 1644 1695 1710 1728 1808 1824 1920 2034 2048 2052 2055 2147 2160 2192 2260 2280 2304 2432 2466 2560 2565 2603 2712 2736 2740 2880 3040 3051 3072 3288 3390 3420 3456 3616 3648 3699 3840 4068 4104 4110 4294 4320 4384 4520 4560 4608 4864 4932 5085 5120 5130 5206 5424 5472 5480 5760 6080 6102 6144 6165 6441 6576 6780 6840 6912 7232 7296 7398 7680 7809 8136 8208 8220 8588 8640 8768 9040 9120 9216 9728 9864 10170 10240 10260 10412 10735 10848 10944 10960 11520 12160 12204 12330 12882 13015 13152 13560 13680 13824 14464 14592 14796 15255 15360 15481 15618 16272 16416 16440 17176 17280 17536 18080 18240 18432 18495 19323 19456 19728 20340 20520 20824 21470 21696 21888 21920 23040 23427 24320 24408 24660 25764 26030 26304 27120 27360 27648 28928 29184 29592 30510 30720 30962 31236 32205 32544 32832 32880 34352 34560 35072 36160 36480 36990 38646 38912 39045 39456 40680 41040 41648 42940 43392 43776 43840 46080 46443 46854 48640 48816 49320 51528 52060 52608 54240 54720 55296 57856 57969 58368 59184 61020 61924 62472 64410 65088 65664 65760 68704 69120 70144 70281 72320 72960 73980 77292 77405 78090 78912 81360 82080 83296 85880 86784 87552 87680 92160 92886 93708 96615 97280 97632 98640 103056 104120 105216 108480 109440 115712 115938 116736 117135 118368 122040 123848 124944 128820 130176 131328 131520 137408 138240 139329 140288 140562 144640 145920 147960 154584 154810 156180 157824 162720 164160 166592 171760 173568 175104 175360 185772 187416 193230 194560 195264 197280 206112 208240 210432 216960 218880 231424 231876 232215 234270 236736 244080 247696 249888 257640 260352 262656 263040 274816 276480 278658 280576 281124 289280 289845 291840 294139 295920 309168 309620 312360 315648 325440 328320 333184 343520 347136 350208 350720 351405 371544 374832 386460 390528 394560 412224 416480 417987 420864 433920 437760 463752 464430 468540 473472 488160 495392 499776 515280 520704 525312 526080 549632 557316 562248 578560 579690 583680 588278 591840 618336 619240 624720 631296 650880 656640 666368 687040 694272 696645 701440 702810 743088 749664 772920 781056 789120 824448 832960 835974 841728 867840 875520 882417 927504 928860 937080 946944 976320 990784 999552 1030560 1041408 1050624 1052160 1099264 1114632 1124496 1157120 1159380 1176556 1183680 1236672 1238480 1249440 1262592 1301760 1313280 1332736 1374080 1393290 1402880 1405620 1470695 1486176 1499328 1545840 1562112 1578240 1648896 1665920 1671948 1735680 1751040 1764834 1855008 1857720 1874160 1893888 1952640 1981568 1999104 2061120 2082816 2089935 2104320 2198528 2229264 2248992 2318760 2353112 2367360 2473344 2476960 2498880 2525184 2603520 2626560 2647251 2665472 2748160 2786580 2811240 2941390 2972352 2998656 3091680 3124224 3156480 3297792 3331840 3343896 3471360 3529668 3710016 3715440 3748320 3787776 3905280 3963136 3998208 4122240 4179870 4208640 4397056 4412085 4458528 4497984 4637520 4706224 4734720 4946688 4953920 4997760 5207040 5253120 5294502 5330944 5496320 5573160 5622480 5882780 5944704 5997312 6183360 6248448 6312960 6595584 6663680 6687792 7059336 7420032 7430880 7496640 7575552 7810560 7926272 7941753 7996416 8244480 8359740 8824170 8917056 8995968 9275040 9412448 9469440 9893376 9907840 9995520 10414080 10589004 10992640 11146320 11244960 11765560 11889408 11994624 12366720 12625920 13191168 13236255 13327360 13375584 14118672 14840064 14861760 14993280 15621120 15852544 15883506 15992832 16488960 16719480 17648340 17834112 17991936 18550080 18824896 18938880 19786752 19815680 19991040 21178008 21985280 22292640 22489920 23531120 23778816 23989248 24733440 26472510 26654720 26751168 28237344 29680128 29723520 29986560 31242240 31705088 31767012 32977920 33438960 35296680 35668224 35983872 37100160 37649792 37877760 39573504 39631360 39708765 39982080 42356016 44585280 44979840 47062240 47557632 47978496 49466880 52945020 53502336 56474688 59360256 59447040 59973120 63534024 65955840 66877920 70593360 71336448 71967744 74200320 75299584 79262720 79417530 79964160 84712032 89170560 89959680 94124480 95115264 98933760 105890040 107004672 112949376 118720512 118894080 119946240 127068048 133755840 141186720 142672896 143935488 148400640 150599168 158525440 158835060 169424064 178341120 179919360 188248960 197867520 211780080 214009344 225898752 237788160 239892480 254136096 267511680 282373440 285345792 296801280 301198336 317670120 338848128 356682240 359838720 376497920 423560160 428018688 451797504 475576320 508272192 535023360 564746880 593602560 602396672 635340240 677696256 713364480 719677440 752995840 847120320 856037376 903595008 1016544384 1070046720 1129493760 1270680480 1355392512 1426728960 1505991680 1694240640 1807190016 2033088768 2140093440 2258987520 2541360960 2710785024 3011983360 3388481280 4066177536 4280186880 4517975040 5082721920 5421570048 6776962560 8132355072 9035950080 10165443840 13553925120 16264710144 20330887680 27107850240 40661775360 81323550720
- Sum of all divisors σ(n): 309228192000
- Sum of proper divisors (its aliquot sum) s(n): 227904641280
- 81323550720 is an abundant number, because the sum of its proper divisors (227904641280) is greater than itself. Its abundance is 146581090560
Bases of 81323550720
- Binary: 10010111011110100001011101000000000002
- Hexadecimal: 0x12EF42E800
- Base-36: 11CXXXC0
Squares and roots of 81323550720
- 81323550720 squared (813235507202) is 6613519901708412518400
- 81323550720 cubed (813235507203) is 537834921164313500090785333248000
-
The
square root of 81323550720 is 285172.8435878845 -
The
cube root of 81323550720 is 4332.5020558229
Scales and comparisons
How big is 81323550720?- 81,323,550,720 seconds is equal to 2,585 years, 43 weeks, 3 days, 19 hours, 12 minutes.
-
To count from 1 to 81,323,550,720 would take you about five thousand, one hundred seventy-one 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 81323550720 cubic inches would be around 361 feet tall.
Recreational maths with 81323550720
- 81323550720 backwards is 02705532318
- 81323550720 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81323550720's digits is 36
- More coming soon!
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The information we have on file for 81323550720 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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