81121438440
81,121,438,440 is an even composite number composed of seven prime numbers multiplied together.
81121438440 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one thousand, one hundred fifty-two divisors.
Prime factorization of 81121438440:
23 × 35 × 5 × 72 × 17 × 43 × 233
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 7 × 7 × 17 × 43 × 233)See below for interesting mathematical facts about the number 81121438440 from the Numbermatics database.
Names of 81121438440
- Cardinal: 81121438440 can be written as Eighty-one billion, one hundred twenty-one million, four hundred thirty-eight thousand, four hundred forty.
Scientific notation
- Scientific notation: 8.112143844 × 1010
Factors of 81121438440
Divisors of 81121438440
- Number of divisors d(n): 1152
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 17 18 20 21 24 27 28 30 34 35 36 40 42 43 45 49 51 54 56 60 63 68 70 72 81 84 85 86 90 98 102 105 108 119 120 126 129 135 136 140 147 153 162 168 170 172 180 189 196 204 210 215 216 233 238 243 245 252 255 258 270 280 294 301 306 315 324 340 344 357 360 378 387 392 405 408 420 430 441 459 466 476 486 490 504 510 516 540 567 588 595 602 612 630 645 648 680 699 714 731 735 756 765 774 810 833 840 860 882 903 918 932 945 952 972 980 1020 1032 1071 1080 1134 1161 1165 1176 1190 1204 1215 1224 1260 1290 1323 1377 1398 1428 1462 1470 1505 1512 1530 1548 1620 1631 1666 1701 1720 1764 1785 1806 1836 1864 1890 1935 1944 1960 2040 2097 2107 2142 2193 2205 2268 2295 2322 2330 2380 2408 2430 2499 2520 2580 2646 2709 2754 2796 2835 2856 2924 2940 3010 3060 3096 3213 3240 3262 3332 3402 3483 3495 3528 3570 3612 3655 3672 3780 3870 3961 3969 4131 4165 4194 4214 4284 4386 4410 4515 4536 4590 4644 4660 4760 4860 4893 4998 5117 5160 5292 5355 5418 5508 5592 5670 5805 5848 5880 6020 6120 6291 6321 6426 6524 6579 6615 6664 6804 6885 6966 6990 7140 7224 7310 7497 7560 7740 7922 7938 8127 8155 8262 8330 8388 8428 8505 8568 8772 8820 9030 9180 9288 9320 9639 9720 9786 9996 10019 10234 10449 10485 10535 10584 10710 10836 10965 11016 11340 11417 11610 11883 11907 12040 12495 12582 12642 12852 13048 13158 13230 13545 13608 13770 13932 13980 14280 14620 14679 14994 15351 15480 15844 15876 16065 16254 16310 16524 16660 16776 16856 17010 17415 17544 17640 18060 18360 18873 18963 19278 19572 19737 19805 19845 19992 20038 20468 20655 20898 20970 21070 21420 21672 21930 22491 22680 22834 23220 23766 23814 24381 24465 24990 25164 25284 25585 25704 26316 26460 27090 27540 27727 27864 27960 28917 29240 29358 29988 30057 30702 31455 31605 31688 31752 32130 32508 32620 32895 33048 33320 34020 34251 34830 35649 35819 36120 37485 37746 37926 38556 39144 39474 39610 39690 40076 40635 40936 41310 41796 41940 42140 42840 43860 44037 44982 45668 46053 46440 47532 47628 48195 48762 48930 49980 50095 50328 50568 51170 52245 52632 52920 54180 55080 55454 56619 56889 57085 57834 58716 59211 59415 59535 59976 60114 61404 62910 63210 64260 65016 65240 65790 67473 68040 68502 69660 70133 71298 71638 73143 73395 74970 75492 75852 76755 77112 78948 79220 79380 80152 81270 82620 83181 83592 83880 84280 87720 88074 89964 90171 91336 92106 94365 94815 95064 95256 96390 97524 97860 98685 99960 100190 102340 102753 104490 106947 107457 108360 110908 112455 113238 113778 114170 115668 117432 118422 118830 119070 120228 121905 122808 125820 126420 128520 131580 132111 134946 137004 138159 138635 139320 140266 142596 143276 144585 146286 146790 149940 150285 150984 151704 153510 157896 158440 158760 162540 165240 166362 170323 170667 171255 176148 177633 178245 179095 179928 180342 184212 188730 189630 192780 194089 195048 195720 197370 200380 202419 204680 205506 208980 210399 213894 214914 220185 221816 224910 226476 227556 228340 230265 231336 236844 237660 238140 240456 243810 249543 251640 252840 263160 264222 269892 270513 274008 276318 277270 280532 283095 284445 285192 286552 289170 292572 293580 296055 299880 300570 307020 308259 320841 322371 325080 332724 337365 340646 341334 342510 350665 352296 355266 356490 358190 360684 365715 368424 377460 379260 385560 388178 394740 396333 400760 404838 411012 414477 415905 417960 420798 427788 429828 440370 449820 450855 452952 455112 456680 460530 473688 475320 476280 487620 490931 499086 510969 512001 513765 528444 534735 537285 539784 541026 552636 554540 561064 566190 568890 578340 582267 585144 587160 592110 601140 614040 616518 631197 641682 644742 660555 665448 674730 681292 682668 685020 690795 701330 710532 712980 716380 721368 731430 748629 754920 758520 776356 789480 792666 809676 811539 822024 828954 831810 841596 851615 853335 855576 859656 880740 888165 899640 901710 921060 924777 962523 967113 970445 975240 981862 998172 1012095 1021938 1024002 1027530 1051995 1056888 1069470 1074570 1082052 1105272 1109080 1132380 1137780 1156680 1164534 1184220 1192261 1202280 1233036 1243431 1247715 1262394 1283364 1289484 1321110 1349460 1352565 1362584 1365336 1370040 1381590 1402660 1421064 1425960 1432760 1462860 1472793 1497258 1532907 1541295 1552712 1585332 1604205 1611855 1619352 1623078 1657908 1663620 1683192 1703230 1706670 1746801 1761480 1776330 1803420 1842120 1849554 1893591 1925046 1934226 1940890 1963724 1981665 1996344 2024190 2043876 2048004 2055060 2072385 2103990 2138940 2149140 2164104 2245887 2264760 2275560 2329068 2368440 2384522 2434617 2454655 2466072 2486862 2495430 2524788 2554845 2560005 2566728 2578968 2642220 2698920 2705130 2763180 2774331 2805320 2901339 2911335 2925720 2945586 2994516 3065814 3082590 3155985 3170664 3208410 3223710 3246156 3315816 3327240 3406460 3413340 3493602 3552660 3576783 3606840 3699108 3743145 3787182 3850092 3868452 3881780 3927448 3963330 4048380 4057695 4087752 4096008 4110120 4144770 4207980 4277880 4298280 4418379 4491774 4598721 4623885 4658136 4769044 4812615 4835565 4869234 4909310 4973724 4990860 5049576 5109690 5120010 5240403 5284440 5410260 5526360 5548662 5680773 5802678 5822670 5891172 5961305 5989032 6131628 6165180 6217155 6311970 6416820 6447420 6492312 6737661 6812920 6826680 6987204 7105320 7153566 7363965 7398216 7486290 7574364 7664535 7700184 7736904 7763560 7926660 8096760 8115390 8289540 8345827 8415960 8704017 8734005 8836758 8983548 9197442 9247770 9467955 9538088 9625230 9671130 9738468 9818620 9947448 9981720 10219380 10240020 10480806 10730349 10820520 11097324 11229435 11361546 11605356 11645340 11782344 11922610 12173085 12263256 12330360 12434310 12623940 12833640 12894840 13255137 13475322 13796163 13871655 13974408 14307132 14506695 14727930 14972580 15148728 15329070 15721209 15853320 16230780 16579080 16691654 17042319 17408034 17468010 17673516 17883915 17967096 18394884 18495540 18935910 19250460 19342260 19476936 19637240 20438760 20480040 20961612 21460698 22091895 22194648 22458870 22723092 22993605 23210712 23290680 23845220 24346170 24868620 25037481 25247880 26202015 26510274 26950644 27592326 27743310 28403865 28614264 29013390 29455860 29945160 30658140 31442418 32191047 32461560 33383308 33688305 34084638 34816068 34936020 35347032 35767830 36789768 36991080 37871820 38500920 38684520 39765411 41388489 41729135 41923224 42921396 43520085 44183790 44917740 45446184 45987210 47163627 47690440 48692340 49737240 50074962 52404030 53020548 53651745 53901288 55184652 55486620 56807730 58026780 58911720 61316280 62884836 64382094 66275685 66766616 67376610 68169276 68980815 69632136 69872040 71535660 75112443 75743640 78606045 79530822 82776978 83458270 85211595 85842792 87040170 88367580 89835480 91974420 94327254 96573141 97384680 100149924 104808060 106041096 107303490 110369304 110973240 113615460 116053560 119296233 125187405 125769672 128764188 132551370 134753220 136338552 137961630 143071320 150224886 157212090 159061644 160955235 165553956 166916540 170423190 174080340 176735160 183948840 188654508 193146282 198827055 200299848 206942445 209616120 214606980 225337329 227230920 235818135 238592466 250374810 257528376 265102740 269506440 275923260 289719423 300449772 314424180 318123288 321910470 331107912 333833080 340846380 348160680 375562215 377309016 386292564 397654110 413884890 429213960 450674658 471636270 477184932 482865705 500749620 530205480 551846520 579438846 596481165 600899544 628848360 643820940 676011987 681692760 751124430 772585128 795308220 827769780 901349316 943272540 954369864 965731410 1001499240 1126686645 1158877692 1192962330 1287641880 1352023974 1448597115 1502248860 1590616440 1655539560 1802698632 1886545080 1931462820 2028035961 2253373290 2317755384 2385924660 2704047948 2897194230 3004497720 3380059935 3862925640 4056071922 4506746580 4771849320 5408095896 5794388460 6760119870 8112143844 9013493160 10140179805 11588776920 13520239740 16224287688 20280359610 27040479480 40560719220 81121438440
- Sum of all divisors σ(n): 346066680960
- Sum of proper divisors (its aliquot sum) s(n): 264945242520
- 81121438440 is an abundant number, because the sum of its proper divisors (264945242520) is greater than itself. Its abundance is 183823804080
Bases of 81121438440
- Binary: 10010111000110011011011101010111010002
- Hexadecimal: 0x12E336EAE8
- Base-36: 119LLYI0
Squares and roots of 81121438440
- 81121438440 squared (811214384402) is 6580687774574709633600
- 81121438440 cubed (811214384403) is 533834858198022904722957355584000
-
The
square root of 81121438440 is 284818.2551031445 -
The
cube root of 81121438440 is 4328.9099094759
Scales and comparisons
How big is 81121438440?- 81,121,438,440 seconds is equal to 2,579 years, 21 weeks, 2 days, 12 hours, 54 minutes.
-
To count from 1 to 81,121,438,440 would take you about five thousand, one hundred fifty-eight 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 81121438440 cubic inches would be around 360.7 feet tall.
Recreational maths with 81121438440
- 81121438440 backwards is 04483412118
- 81121438440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81121438440's digits is 36
- More coming soon!
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The information we have on file for 81121438440 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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