18438748733440

Names of 18438748733440

• Cardinal: 18438748733440 can be written as Eighteen trillion, four hundred thirty-eight billion, seven hundred forty-eight million, seven hundred thirty-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.843874873344 × 10¹³

Factors of 18438748733440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 1811

Divisors of 18438748733440

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 31 32 35 40 43 49 56 62 64 70 80 86 98 112 124 128 140 155 160 172 196 215 217 224 245 248 256 280 301 310 320 344 392 430 434 448 490 496 512 560 602 620 640 688 784 860 868 896 980 992 1024 1085 1120 1204 1240 1280 1333 1376 1505 1519 1568 1720 1723 1736 1792 1960 1984 2048 2107 2170 2240 2408 2480 2560 2666 2752 3010 3038 3136 3440 3446 3472 3584 3920 3968 4096 4214 4340 4480 4816 4960 5120 5332 5504 6020 6076 6272 6665 6880 6892 6944 7168 7595 7840 7936 8192 8428 8615 8680 8960 9331 9632 9920 10240 10535 10664 11008 12040 12061 12152 12544 13330 13760 13784 13888 14336 15190 15680 15872 16384 16856 17230 17360 17920 18662 19264 19840 20480 21070 21328 22016 24080 24122 24304 25088 26660 27520 27568 27776 28672 30380 31360 31744 32768 33712 34460 34720 35840 37324 38528 39680 40960 42140 42656 44032 46655 48160 48244 48608 50176 53320 53413 55040 55136 55552 57344 60305 60760 62720 63488 65317 67424 68920 69440 71680 74089 74648 77056 79360 81920 84280 84427 85312 88064 93310 96320 96488 97216 100352 106640 106826 110080 110272 111104 114688 120610 121520 125440 126976 130634 134848 137840 138880 143360 148178 149296 154112 158720 163840 168560 168854 170624 176128 186620 192640 192976 194432 200704 213280 213652 220160 220544 222208 229376 241220 243040 250880 253952 261268 267065 269696 275680 277760 286720 296356 298592 308224 317440 326585 337120 337708 341248 352256 370445 373240 373891 385280 385952 388864 401408 422135 426560 427304 440320 441088 444416 482440 486080 501760 507904 518623 522536 534130 539392 551360 555520 573440 592712 597184 616448 634880 653170 674240 675416 682496 704512 740890 746480 747782 770560 771904 777728 802816 844270 853120 854608 880640 882176 888832 964880 972160 1003520 1015808 1037246 1045072 1068260 1078784 1102720 1111040 1146880 1185424 1194368 1232896 1269760 1306340 1348480 1350832 1364992 1409024 1481780 1492960 1495564 1541120 1543808 1555456 1605632 1688540 1706240 1709216 1761280 1764352 1777664 1869455 1929760 1944320 2007040 2074492 2090144 2136520 2157568 2205440 2222080 2296759 2370848 2388736 2465792 2539520 2593115 2612680 2617237 2696960 2701664 2729984 2963560 2985920 2991128 3082240 3087616 3110912 3377080 3412480 3418432 3522560 3528704 3555328 3630361 3738910 3859520 3888640 4014080 4148984 4180288 4273040 4315136 4410880 4444160 4593518 4741696 4777472 4931584 5079040 5186230 5225360 5234474 5393920 5403328 5459968 5927120 5971840 5982256 6164480 6175232 6221824 6754160 6824960 6836864 7045120 7057408 7110656 7260722 7477820 7719040 7777280 8028160 8297968 8360576 8546080 8630272 8821760 8888320 9187036 9483392 9554944 9863168 10372460 10450720 10468948 10787840 10806656 10919936 11483795 11854240 11943680 11964512 12328960 12350464 12443648 13086185 13508320 13649920 13673728 14114816 14521444 14955640 15438080 15554560 16077313 16595936 16721152 17092160 17260544 17643520 17776640 18151805 18374072 18966784 19109888 20744920 20901440 20937896 21575680 21613312 21839872 22967590 23708480 23887360 23929024 24657920 24700928 24887296 26172370 27016640 27299840 27347456 28229632 29042888 29911280 30876160 31109120 32154626 33191872 33442304 34184320 34521088 35287040 35553280 36303610 36748144 37933568 38219776 41489840 41802880 41875792 43151360 43226624 43679744 45935180 47416960 47774720 47858048 49315840 49401856 49774592 52344740 54033280 54599680 54694912 56459264 58085776 59822560 61752320 62218240 64309252 66383744 66884608 68368640 69042176 70574080 72607220 73496288 75867136 76439552 80386565 82979680 83605760 83751584 86302720 86453248 91870360 94833920 95549440 95716096 98803712 104689480 108066560 109199360 109389824 112541191 116171552 119645120 123504640 124436480 128618504 132767488 133769216 136737280 141148160 145214440 146992576 151734272 152879104 160773130 165959360 167211520 167503168 172605440 172906496 183740720 189667840 191098880 191432192 197607424 209378960 216133120 218398720 218779648 225082382 232343104 239290240 247009280 248872960 257237008 265534976 267538432 273474560 282296320 290428880 293985152 303468544 305758208 321546260 331918720 334423040 335006336 345210880 345812992 367481440 379335680 382197760 382864384 395214848 418757920 432266240 437559296 450164764 464686208 478580480 494018560 514474016 531069952 535076864 546949120 562705955 580857760 587970304 606937088 643092520 663837440 668846080 670012672 691625984 734962880 758671360 764395520 765728768 837515840 864532480 875118592 900329528 929372416 957160960 988037120 1028948032 1062139904 1070153728 1093898240 1125411910 1161715520 1175940608 1213874176 1286185040 1327674880 1337692160 1340025344 1383251968 1469925760 1517342720 1528791040 1531457536 1675031680 1729064960 1750237184 1800659056 1858744832 1914321920 1976074240 2057896064 2124279808 2140307456 2187796480 2250823820 2323431040 2351881216 2427748352 2572370080 2655349760 2675384320 2680050688 2766503936 2939851520 3034685440 3062915072 3350063360 3458129920 3601318112 3717489664 3828643840 4115792128 4248559616 4375592960 4501647640 4646862080 4703762432 5144740160 5310699520 5350768640 5360101376 5879703040 6069370880 6125830144 6700126720 6916259840 7202636224 7434979328 7657287680 8231584256 8497119232 8751185920 9003295280 9293724160 9407524864 10289480320 10621399040 10701537280 10720202752 11759406080 12138741760 12251660288 13400253440 13832519680 14405272448 14869958656 15314575360 16463168512 16994238464 18006590560 18587448320 18815049728 20578960640 21242798080 21440405504 23518812160 26800506880 28810544896 29739917312 30629150720 32926337024 36013181120 37174896640 37630099456 41157921280 42485596160 42880811008 47037624320 53601013760 57621089792 59479834624 61258301440 65852674048 72026362240 74349793280 75260198912 82315842560 84971192320 85761622016 94075248640 107202027520 115242179584 118959669248 131705348096 144052724480 148699586560 164631685120 188150497280 214404055040 230484359168 263410696192 288105448960 297399173120 329263370240 376300994560 428808110080 460968718336 526821392384 576210897920 594798346240 658526740480 921937436672 1152421795840 1317053480960 1843874873344 2304843591680 2634106961920 3687749746688 4609687183360 9219374366720 18438748733440
• Sum of all divisors σ(n): 54405064074240
• Sum of proper divisors (its aliquot sum) s(n): 35966315340800
• 18438748733440 is an abundant number, because the sum of its proper divisors (35966315340800) is greater than itself. Its abundance is 17527566607360

Bases of 18438748733440

• Binary: 100001100010100011011000100011000000000000000₂
• Hexadecimal: 0x10C51B118000
• Base-36: 6JAN6X69S

Squares and roots of 18438748733440

• 18438748733440 squared (18438748733440²) is 339987454854935204174233600
• 18438748733440 cubed (18438748733440³) is 6268943252591925674900917593082691584000
• The square root of 18438748733440 is 4294036.4150109393
• The cube root of 18438748733440 is 26418.6415310457

Scales and comparisons

• 18,438,748,733,440 seconds is equal to 586,295 years, 9 weeks, 16 hours, 10 minutes, 40 seconds.
• To count from 1 to 18,438,748,733,440 would take you about one million, four hundred sixty-five thousand, seven hundred thirty-seven 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 18438748733440 cubic inches would be around 2201.6 feet tall.

Recreational maths with 18438748733440

• 18438748733440 backwards is 04433784783481
• 18438748733440 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18438748733440's digits is 64
• More coming soon!