18381788938240

Names of 18381788938240

• Cardinal: 18381788938240 can be written as Eighteen trillion, three hundred eighty-one billion, seven hundred eighty-eight million, nine hundred thirty-eight thousand, two hundred forty.

Scientific notation

• Scientific notation: 1.838178893824 × 10¹³

Factors of 18381788938240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 32
• Sum of prime factors: 70

Divisors of 18381788938240

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 43 49 52 56 64 65 70 80 86 91 98 104 112 128 130 140 160 172 182 196 208 215 224 245 256 260 280 301 320 344 364 392 416 430 448 455 490 512 520 559 560 602 637 640 688 728 784 832 860 896 910 980 1024 1040 1118 1120 1204 1274 1280 1376 1456 1505 1568 1664 1720 1792 1820 1960 2048 2080 2107 2236 2240 2408 2548 2560 2752 2795 2912 3010 3136 3185 3328 3440 3584 3640 3913 3920 4096 4160 4214 4472 4480 4816 5096 5120 5504 5590 5824 6020 6272 6370 6656 6880 7168 7280 7826 7840 8192 8320 8428 8944 8960 9632 10192 10240 10535 11008 11180 11648 12040 12544 12740 13312 13760 14336 14560 15652 15680 16384 16640 16856 17888 17920 19264 19565 20384 20480 21070 22016 22360 23296 24080 25088 25480 26624 27391 27520 28672 29120 31304 31360 32768 33280 33712 35776 35840 38528 39130 40768 40960 42140 44032 44720 46592 48160 50176 50960 53248 54782 55040 57344 58240 62608 62720 65536 66560 67424 71552 71680 77056 78260 81536 81920 84280 88064 89440 93184 96320 100352 101920 106496 109564 110080 114688 116480 125216 125440 131072 133120 134848 136955 143104 143360 154112 156520 163072 163840 168560 176128 178880 186368 192640 200704 203840 212992 219128 220160 229376 232960 250432 250880 262144 266240 269696 273910 286208 286720 308224 313040 326144 327680 337120 352256 357760 372736 385280 401408 407680 425984 438256 440320 458752 465920 500864 501760 524288 532480 539392 547820 572416 573440 616448 626080 652288 655360 674240 704512 715520 745472 770560 802816 815360 851968 876512 880640 917504 931840 1001728 1003520 1048576 1064960 1078784 1095640 1144832 1146880 1232896 1252160 1304576 1310720 1348480 1409024 1431040 1490944 1541120 1605632 1630720 1703936 1753024 1761280 1835008 1863680 2003456 2007040 2097152 2129920 2157568 2191280 2289664 2293760 2465792 2504320 2609152 2621440 2696960 2818048 2862080 2981888 3082240 3211264 3261440 3407872 3506048 3522560 3670016 3727360 4006912 4014080 4194304 4259840 4315136 4382560 4579328 4587520 4931584 5008640 5218304 5242880 5393920 5636096 5724160 5963776 6164480 6422528 6522880 6815744 7012096 7045120 7340032 7454720 8013824 8028160 8388608 8519680 8630272 8765120 9158656 9175040 9863168 10017280 10436608 10485760 10787840 11272192 11448320 11927552 12328960 12845056 13045760 13631488 14024192 14090240 14680064 14909440 16027648 16056320 16777216 17039360 17260544 17530240 18317312 18350080 19726336 20034560 20873216 20971520 21575680 22544384 22896640 23855104 24657920 25690112 26091520 27262976 28048384 28180480 29360128 29818880 32055296 32112640 33554432 34078720 34521088 35060480 36634624 36700160 39452672 40069120 41746432 41943040 43151360 45088768 45793280 47710208 49315840 51380224 52183040 54525952 56096768 56360960 58720256 59637760 64110592 64225280 67108864 68157440 69042176 70120960 73269248 73400320 78905344 80138240 83492864 83886080 86302720 90177536 91586560 95420416 98631680 102760448 104366080 109051904 112193536 112721920 117440512 119275520 128221184 128450560 134217728 136314880 138084352 140241920 146538496 146800640 157810688 160276480 166985728 167772160 172605440 180355072 183173120 190840832 197263360 205520896 208732160 218103808 224387072 225443840 234881024 238551040 256442368 256901120 272629760 276168704 280483840 293076992 293601280 315621376 320552960 333971456 335544320 345210880 360710144 366346240 381681664 394526720 411041792 417464320 436207616 448774144 450887680 469762048 477102080 512884736 513802240 545259520 552337408 560967680 586153984 587202560 631242752 641105920 667942912 671088640 690421760 721420288 732692480 763363328 789053440 822083584 834928640 872415232 897548288 901775360 939524096 954204160 1025769472 1027604480 1090519040 1104674816 1121935360 1172307968 1174405120 1262485504 1282211840 1335885824 1380843520 1442840576 1465384960 1526726656 1578106880 1644167168 1669857280 1744830464 1795096576 1803550720 1908408320 2051538944 2055208960 2181038080 2209349632 2243870720 2344615936 2348810240 2524971008 2564423680 2671771648 2761687040 2885681152 2930769920 3053453312 3156213760 3288334336 3339714560 3590193152 3607101440 3816816640 4103077888 4110417920 4362076160 4418699264 4487741440 4689231872 4697620480 5049942016 5128847360 5343543296 5523374080 5771362304 5861539840 6106906624 6312427520 6576668672 6679429120 7180386304 7214202880 7633633280 8206155776 8220835840 8724152320 8837398528 8975482880 9378463744 10099884032 10257694720 10687086592 11046748160 11723079680 12213813248 12624855040 13358858240 14360772608 14428405760 15267266560 16412311552 16441671680 17674797056 17950965760 18756927488 20199768064 20515389440 21374173184 22093496320 23446159360 25249710080 26717716480 28721545216 28856811520 30534533120 32824623104 32883343360 35349594112 35901931520 37513854976 40399536128 41030778880 42748346368 44186992640 46892318720 50499420160 53435432960 57443090432 61069066240 65649246208 70699188224 71803863040 75027709952 82061557760 85496692736 88373985280 93784637440 100998840320 106870865920 114886180864 131298492416 141398376448 143607726080 164123115520 176747970560 187569274880 201997680640 213741731840 229772361728 262596984832 282796752896 287215452160 328246231040 353495941120 375138549760 427483463680 459544723456 525193969664 574430904320 656492462080 706991882240 919089446912 1148861808640 1312984924160 1413983764480 1838178893824 2297723617280 2625969848320 3676357787648 4595447234560 9190894469120 18381788938240
• Sum of all divisors σ(n): 56551834175760
• Sum of proper divisors (its aliquot sum) s(n): 38170045237520
• 18381788938240 is an abundant number, because the sum of its proper divisors (38170045237520) is greater than itself. Its abundance is 19788256299280

Bases of 18381788938240

• Binary: 100001011011111011000000000000000000000000000₂
• Hexadecimal: 0x10B7D8000000
• Base-36: 6IKH6J30G

Squares and roots of 18381788938240

• 18381788938240 squared (18381788938240²) is 337890164570002426534297600
• 18381788938240 cubed (18381788938240³) is 6211025689432963770198109883648180224000
• The square root of 18381788938240 is 4287398.8545783793
• The cube root of 18381788938240 is 26391.4098822965

Scales and comparisons

• 18,381,788,938,240 seconds is equal to 584,484 years, 1 week, 3 days, 18 hours, 50 minutes, 40 seconds.
• To count from 1 to 18,381,788,938,240 would take you about one million, four hundred sixty-one thousand, two hundred ten 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 18381788938240 cubic inches would be around 2199.3 feet tall.

Recreational maths with 18381788938240

• 18381788938240 backwards is 04283988718381
• 18381788938240 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18381788938240's digits is 70
• More coming soon!