18181995997984

Names of 18181995997984

• Cardinal: 18181995997984 can be written as Eighteen trillion, one hundred eighty-one billion, nine hundred ninety-five million, nine hundred ninety-seven thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 1.8181995997984 × 10¹³

Factors of 18181995997984

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 80

Divisors of 18181995997984

• Number of divisors d(n): 756
• Complete list of divisors:
  1 2 4 7 8 13 14 16 17 26 28 32 34 41 49 52 56 68 82 91 98 104 112 119 136 164 169 182 196 208 221 224 238 272 287 328 338 343 364 392 416 442 476 533 544 574 637 656 676 686 697 728 784 833 884 952 1066 1148 1183 1274 1312 1352 1372 1394 1456 1547 1568 1666 1681 1768 1904 2009 2132 2296 2366 2401 2548 2704 2744 2788 2873 2912 3094 3332 3362 3536 3731 3808 4018 4264 4459 4592 4732 4802 4879 5096 5408 5488 5576 5746 5831 6188 6664 6724 6929 7072 7462 8036 8281 8528 8918 9061 9184 9464 9604 9758 10192 10829 10976 11152 11492 11662 11767 12376 13328 13448 13858 14063 14924 16072 16562 16807 17056 17836 18122 18928 19208 19516 20111 20384 21658 21853 22304 22984 23324 23534 24752 26117 26656 26896 27716 28126 28577 29848 31213 32144 33124 33614 34153 35672 36244 37856 38416 39032 40222 40817 43316 43706 45968 46648 47068 48503 49504 52234 53792 55432 56252 57154 57967 59696 62426 63427 64288 66248 67228 68306 71344 72488 75803 76832 78064 80444 81634 82369 86632 87412 91936 93296 94136 97006 98441 104468 110864 112504 114308 115934 117649 117793 119392 124852 126854 132496 134456 136612 140777 142688 144976 151606 152971 156128 160888 163268 164738 173264 174824 182819 186592 188272 194012 196882 200039 208936 218491 221728 225008 228616 231868 235298 235586 239071 249704 253708 264992 268912 273224 281554 284089 285719 289952 303212 305942 321776 326536 329476 339521 346528 349648 365638 371501 376544 388024 393764 400078 405769 417872 436982 443989 450016 457232 463736 470596 471172 478142 499408 507416 530621 537824 546448 563108 568178 571438 576583 606424 611884 643552 653072 658952 679042 689087 699296 731276 743002 776048 787528 800156 811538 824551 835744 873964 887978 914464 927472 941192 942344 956284 985439 998816 1014832 1061242 1070797 1092896 1126216 1136356 1142876 1153166 1212848 1223768 1279733 1306144 1317904 1358084 1378174 1400273 1462552 1486004 1529437 1552096 1575056 1600312 1623076 1649102 1673497 1747928 1775956 1854944 1882384 1884688 1912568 1970878 1988623 2000033 2029664 2122484 2141594 2252432 2272712 2285752 2306332 2376647 2425696 2447536 2559466 2600507 2635808 2716168 2756348 2800546 2840383 2925104 2972008 3058874 3107923 3150112 3200624 3246152 3298204 3346994 3495856 3551912 3714347 3764768 3769376 3825136 3941756 3977246 4000066 4036081 4244968 4283188 4504864 4545424 4571504 4612664 4753294 4823609 4829513 4895072 5118932 5201014 5432336 5512696 5601092 5680766 5771857 5850208 5944016 6117748 6215846 6401248 6492304 6596408 6693988 6898073 6991712 7103824 7428694 7495579 7650272 7883512 7954492 8000132 8072162 8489936 8566376 8958131 9090848 9143008 9225328 9506588 9647218 9659026 9801911 10237864 10402028 10864672 11025392 11202184 11361532 11543714 11714479 11888032 12235496 12431692 12984608 13192816 13387976 13796146 13920361 14207648 14857388 14991158 15767024 15908984 16000264 16144324 16636529 16979872 17132752 17916262 18203549 18450656 19013176 19294436 19318052 19603822 19882681 20475728 20804056 21755461 22050784 22404368 22723064 23087428 23428958 24470992 24863384 26000429 26385632 26775952 27592292 27840722 28252567 29714776 29982316 31534048 31817968 32000528 32288648 33273058 33806591 34265504 35832524 36407098 38026352 38588872 38636104 39207644 39765362 40402999 40951456 41608112 43510922 44808736 45446128 46174856 46857916 48286511 48941984 49726768 52000858 52469053 53551904 55184584 55681444 56505134 59429552 59964632 62706917 63635936 64001056 64577296 66546116 67613182 68613377 71665048 72814196 76052704 77177744 77272208 78415288 79530724 80805998 82001353 83216224 87021844 90892256 92349712 93715832 96573022 97442527 99453536 104001716 104938106 110369168 111362888 113010268 116455703 118859104 119929264 125413834 127424843 129154592 133092232 135226364 137226754 143330096 145628392 152288227 154355488 154544416 156830576 159061448 161611996 164002706 174043688 184699424 187431664 193146044 194885054 197767969 208003432 209876212 220738336 222725776 226020536 232911406 236646137 239858528 250827668 254849686 266184464 270452728 274453508 282820993 286660192 291256784 304576454 313661152 318122896 323223992 328005412 338005577 348087376 367283371 374863328 386292088 389770108 395535938 416006864 419752424 445451552 452041072 465822812 473292274 480293639 501655336 509699372 532368928 540905456 548907016 565641986 582513568 609152908 636245792 646447984 656010824 676011154 682097689 696174752 734566742 772584176 779540216 791071876 815189921 832013728 839504848 891973901 904082144 931645624 946584548 960587278 1003310672 1019398744 1066017589 1081810912 1097814032 1131283972 1218305816 1292895968 1312021648 1352022308 1364195378 1469133484 1545168352 1559080432 1582143752 1630379842 1656522959 1679009696 1783947802 1863291248 1893169096 1921174556 1979746951 2006621344 2038797488 2132035178 2195628064 2262567944 2436611632 2570983597 2624043296 2704044616 2728390756 2938266968 3118160864 3164287504 3260759684 3313045918 3362055473 3567895604 3726582496 3786338192 3842349112 3959493902 4077594976 4264070356 4525135888 4774683823 4873223264 5141967194 5408089232 5456781512 5876533936 6243817307 6328575008 6521519368 6626091836 6724110946 7135791208 7572676384 7684698224 7918987804 8528140712 9050271776 9549367646 10283934388 10816178464 10913563024 11595660713 11753067872 12487634614 13043038736 13252183672 13448221892 13858228657 14271582416 15369396448 15837975608 17056281424 19098735292 20567868776 21827126048 23191321426 24975269228 26086077472 26504367344 26896443784 27716457314 28543164832 31675951216 33422786761 34112562848 38197470584 41135737552 43706721149 46382642852 49950538456 53008734688 53792887568 55432914628 63351902432 66845573522 76394941168 81169624991 82271475104 87413442298 92765285704 99901076912 107585775136 110865829256 133691147044 152789882336 162339249982 174826884596 185530571408 199802153824 221731658512 267382294088 324678499964 349653769192 371061142816 443463317024 534764588176 568187374937 649356999928 699307538384 1069529176352 1136374749874 1298713999856 1398615076768 2272749499748 2597427999712 4545498999496 9090997998992 18181995997984
• Sum of all divisors σ(n): 49077668646342
• Sum of proper divisors (its aliquot sum) s(n): 30895672648358
• 18181995997984 is an abundant number, because the sum of its proper divisors (30895672648358) is greater than itself. Its abundance is 12713676650374

Bases of 18181995997984

• Binary: 100001000100101010011011010011010101100100000₂
• Hexadecimal: 0x10895369AB20
• Base-36: 6G0OYYZOG

Squares and roots of 18181995997984

• 18181995997984 squared (18181995997984²) is 330584978470706192132064256
• 18181995997984 cubed (18181995997984³) is 6010694755548006785923480090996734459904
• The square root of 18181995997984 is 4264035.1778548919
• The cube root of 18181995997984 is 26295.4446649117

Scales and comparisons

• 18,181,995,997,984 seconds is equal to 578,131 years, 12 weeks, 11 hours, 53 minutes, 4 seconds.
• To count from 1 to 18,181,995,997,984 would take you about one million, four hundred forty-five thousand, three hundred twenty-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 18181995997984 cubic inches would be around 2191.3 feet tall.

Recreational maths with 18181995997984

• 18181995997984 backwards is 48979959918181
• The number of decimal digits it has is: 14
• The sum of 18181995997984's digits is 88
• More coming soon!