81308660400
81,308,660,400 is an even composite number composed of six prime numbers multiplied together.
81308660400 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of seven hundred twenty divisors.
Prime factorization of 81308660400:
24 × 32 × 52 × 113 × 71 × 239
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 11 × 11 × 11 × 71 × 239)See below for interesting mathematical facts about the number 81308660400 from the Numbermatics database.
Names of 81308660400
- Cardinal: 81308660400 can be written as Eighty-one billion, three hundred eight million, six hundred sixty thousand, four hundred.
Scientific notation
- Scientific notation: 8.13086604 × 1010
Factors of 81308660400
Divisors of 81308660400
- Number of divisors d(n): 720
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 25 30 33 36 40 44 45 48 50 55 60 66 71 72 75 80 88 90 99 100 110 120 121 132 142 144 150 165 176 180 198 200 213 220 225 239 240 242 264 275 284 300 330 355 360 363 396 400 426 440 450 478 484 495 528 550 568 600 605 639 660 710 717 720 726 781 792 825 852 880 900 956 968 990 1065 1089 1100 1136 1195 1200 1210 1278 1320 1331 1420 1434 1452 1562 1584 1650 1704 1775 1800 1815 1912 1936 1980 2130 2151 2178 2200 2343 2390 2420 2475 2556 2629 2640 2662 2840 2868 2904 3025 3124 3195 3300 3408 3550 3585 3600 3630 3824 3905 3960 3993 4260 4302 4356 4400 4686 4780 4840 4950 5112 5258 5324 5325 5445 5680 5736 5808 5975 6050 6248 6390 6600 6655 7029 7100 7170 7260 7810 7887 7920 7986 8520 8591 8604 8712 9075 9372 9560 9680 9900 10224 10516 10648 10650 10755 10890 11472 11715 11950 11979 12100 12496 12780 13145 13200 13310 14058 14200 14340 14520 15620 15774 15972 15975 16969 17040 17182 17208 17424 17925 18150 18744 19120 19525 19800 19965 21032 21296 21300 21510 21780 23430 23661 23900 23958 24200 25560 25773 26290 26620 27225 28116 28400 28680 28919 29040 31240 31548 31944 31950 33275 33938 34364 34416 35145 35850 36300 37488 39050 39435 39600 39930 42064 42600 42955 43020 43560 46860 47322 47800 47916 48400 50907 51120 51546 52580 53240 53775 54450 56232 57360 57838 58575 59895 62480 63096 63888 63900 65725 66550 67876 68728 70290 71700 72600 77319 78100 78870 79860 84845 85200 85910 86040 86757 87120 93720 94501 94644 95600 95832 99825 101814 103092 105160 106480 107550 108900 112464 115676 117150 118305 119790 126192 127800 128865 131450 133100 135752 137456 140580 143400 144595 145200 152721 154638 156200 157740 159720 169690 171820 172080 173514 175725 186659 187440 189002 189288 191664 197175 199650 203628 206184 210320 214775 215100 217800 231352 234300 236610 239580 254535 255600 257730 260271 262900 266200 271504 281160 283503 286800 289190 299475 305442 309276 312400 315480 318109 319440 339380 343640 347028 351450 373318 378004 378576 386595 394350 399300 407256 412368 424225 429550 430200 433785 435600 462704 468600 472505 473220 479160 509070 515460 520542 525800 532400 559977 562320 567006 578380 591525 598950 610884 618552 630960 636218 644325 678760 687280 694056 702900 722975 746636 756008 763605 773190 788700 798600 814512 848450 850509 859100 860400 867570 933295 937200 945010 946440 954327 958320 1018140 1030920 1041084 1051600 1119954 1134012 1156760 1183050 1197900 1221768 1237104 1272436 1272675 1288650 1301355 1357520 1388112 1405800 1417515 1445950 1493272 1512016 1527210 1546380 1577400 1590545 1597200 1679931 1696900 1701018 1718200 1735140 1866590 1890020 1892880 1908654 1932975 2036280 2053249 2061840 2082168 2168925 2239908 2268024 2313520 2362525 2366100 2395800 2443536 2544872 2545350 2577300 2602710 2799885 2811600 2835030 2862981 2891900 2986544 3054420 3092760 3154800 3181090 3359862 3393800 3402036 3436400 3470280 3733180 3780040 3817308 3818025 3865950 4072560 4106498 4164336 4252545 4337850 4479816 4536048 4666475 4725050 4732200 4771635 4791600 5089744 5090700 5154600 5205420 5599770 5670060 5725962 5783800 6108840 6159747 6185520 6362180 6506775 6719724 6787600 6804072 6940560 7087575 7466360 7560080 7634616 7636050 7731900 7952725 8212996 8399655 8505090 8675700 8959632 9332950 9450100 9464400 9543270 10181400 10266245 10309200 10410840 11199540 11340120 11451924 11567600 12217680 12319494 12724360 13013550 13439448 13608144 13999425 14175150 14314905 14932720 15269232 15272100 15463800 15905450 16425992 16799310 17010180 17351400 18479241 18665900 18900200 19086540 20362800 20532490 20821680 21262725 22399080 22585739 22680240 22903848 23858175 24638988 25448720 26027100 26878896 27998850 28350300 28629810 30544200 30798735 30927600 31810900 32851984 33598620 34020360 34702800 36958482 37331800 37800400 38173080 41064980 41998275 42525450 44798160 45171478 45807696 47716350 49277976 51331225 52054200 55997700 56700600 57259620 61088400 61597470 63621800 67197240 67757217 68040720 71574525 73916964 74663600 76346160 82129960 83996550 85050900 90342956 92396205 95432700 98555952 102662450 104108400 111995400 112928695 113401200 114519240 123194940 127243600 134394480 135514434 143149050 147833928 153993675 164259920 167993100 170101800 180685912 184792410 190865400 203271651 205324900 223990800 225857390 229038480 246389880 271028868 286298100 295667856 307987350 335986200 338786085 340203600 361371824 369584820 381730800 406543302 410649800 451714780 461981025 492779760 542057736 564643475 572596200 615974700 671972400 677572170 739169640 813086604 821299600 903429560 923962050 1016358255 1084115472 1129286950 1145192400 1231949400 1355144340 1478339280 1626173208 1693930425 1806859120 1847924100 2032716510 2258573900 2463898800 2710288680 3252346416 3387860850 3695848200 4065433020 4517147800 5081791275 5420577360 6775721700 7391696400 8130866040 9034295600 10163582550 13551443400 16261732080 20327165100 27102886800 40654330200 81308660400
- Sum of all divisors σ(n): 316046914560
- Sum of proper divisors (its aliquot sum) s(n): 234738254160
- 81308660400 is an abundant number, because the sum of its proper divisors (234738254160) is greater than itself. Its abundance is 153429593760
Bases of 81308660400
- Binary: 10010111011100101111110110010101100002
- Hexadecimal: 0x12EE5FB2B0
- Base-36: 11CP2RW0
Squares and roots of 81308660400
- 81308660400 squared (813086604002) is 6611098256042528160000
- 81308660400 cubed (813086604003) is 537539542971594170118876864000000
-
The
square root of 81308660400 is 285146.7348576869 -
The
cube root of 81308660400 is 4332.2376130335
Scales and comparisons
How big is 81308660400?- 81,308,660,400 seconds is equal to 2,585 years, 18 weeks, 6 days, 11 hours.
-
To count from 1 to 81,308,660,400 would take you about five thousand, one hundred seventy 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 81308660400 cubic inches would be around 361 feet tall.
Recreational maths with 81308660400
- 81308660400 backwards is 00406680318
- 81308660400 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81308660400's digits is 36
- More coming soon!
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The information we have on file for 81308660400 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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