18909210394368

Names of 18909210394368

• Cardinal: 18909210394368 can be written as Eighteen trillion, nine hundred nine billion, two hundred ten million, three hundred ninety-four thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8909210394368 × 10¹³

Factors of 18909210394368

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 462

Divisors of 18909210394368

• Number of divisors d(n): 486
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 97 112 126 128 144 168 192 194 224 252 256 288 291 336 353 384 388 448 504 576 582 672 679 706 768 776 873 896 1008 1059 1152 1164 1344 1358 1412 1552 1746 1792 2016 2037 2118 2304 2328 2471 2688 2716 2824 3104 3177 3492 4032 4074 4236 4656 4942 5376 5432 5648 6111 6208 6354 6984 7413 8064 8148 8472 9312 9409 9884 10864 11296 12222 12416 12708 13968 14826 16128 16296 16944 18624 18818 19768 21728 22239 22592 24444 24832 25416 27936 28227 29652 32592 33888 34241 37248 37636 39536 43456 44478 45184 48888 50832 55872 56454 59304 65184 65863 67776 68482 74496 75272 79072 84681 86912 88956 90368 97776 101664 102723 111744 112908 118608 124609 130368 131726 135552 136964 150544 158144 169362 173824 177912 195552 197589 203328 205446 223488 225816 237216 239687 249218 260736 263452 271104 273928 301088 308169 316288 338724 355824 373827 391104 395178 406656 410892 451632 474432 479374 498436 521472 526904 547856 592767 602176 616338 632576 677448 711648 719061 747654 782208 790356 813312 821784 872263 903264 948864 958748 996872 1053808 1095712 1121481 1185534 1204352 1232676 1354896 1423296 1438122 1495308 1564416 1580712 1643568 1744526 1806528 1897728 1917496 1993744 2107616 2157183 2191424 2242962 2371068 2408704 2465352 2616789 2709792 2846592 2876244 2990616 3161424 3287136 3321377 3489052 3613056 3834992 3987488 4215232 4314366 4382848 4485924 4742136 4930704 5233578 5419584 5693184 5752488 5981232 6322848 6574272 6642754 6978104 7226112 7669984 7850367 7974976 8430464 8628732 8765696 8971848 9484272 9861408 9964131 10467156 10839168 11504976 11962464 12087073 12645696 13148544 13285508 13956208 15339968 15700734 15949952 16860928 17257464 17943696 18968544 19722816 19928262 20934312 21678336 23009952 23249639 23924928 24174146 25291392 26297088 26571016 27912416 29892393 30679936 31401468 31899904 34514928 35887392 36261219 37937088 39445632 39856524 41868624 46019904 46499278 47849856 48348292 50582784 53142032 55824832 59784786 61359872 62802936 69029856 69748917 71774784 72522438 75874176 78891264 79713048 83737248 84609511 92039808 92998556 95699712 96696584 106284064 108783657 111649664 119569572 125605872 138059712 139497834 143549568 145044876 151748352 159426096 167474496 169219022 184079616 185997112 193393168 209246751 212568128 217567314 223299328 239139144 251211744 253828533 276119424 278995668 287099136 290089752 318852192 334948992 338438044 371994224 386786336 418493502 425136256 435134628 478278288 502423488 507657066 552238848 557991336 580179504 637704384 669897984 676876088 743988448 761485599 773572672 836987004 850272512 870269256 956556576 1004846976 1015314132 1115982672 1160359008 1172446081 1275408768 1353752176 1487976896 1522971198 1547145344 1673974008 1740538512 1913113152 2009693952 2030628264 2231965344 2320718016 2344892162 2550817536 2707504352 2975953792 3045942396 3094290688 3347948016 3481077024 3517338243 3826226304 4061256528 4463930688 4641436032 4689784324 5415008704 5951907584 6091884792 6695896032 6962154048 7034676486 7652452608 8122513056 8207122567 8927861376 9282872064 9379568648 10552014729 10830017408 12183769584 13391792064 13924308096 14069352972 16245026112 16414245134 17855722752 18759137296 21104029458 21660034816 24367539168 24621367701 26783584128 27848616192 28138705944 32490052224 32828490268 37518274592 42208058916 48735078336 49242735402 53567168256 56277411888 64980104448 65656980536 73864103103 75036549184 84416117832 97470156672 98485470804 112554823776 131313961072 147728206206 150073098368 168832235664 194940313344 196970941608 225109647552 262627922144 295456412412 300146196736 337664471328 393941883216 450219295104 525255844288 590912824824 675328942656 787883766432 900438590208 1050511688576 1181825649648 1350657885312 1575767532864 2101023377152 2363651299296 2701315770624 3151535065728 4727302598592 6303070131456 9454605197184 18909210394368
• Sum of all divisors σ(n): 63136307119704
• Sum of proper divisors (its aliquot sum) s(n): 44227096725336
• 18909210394368 is an abundant number, because the sum of its proper divisors (44227096725336) is greater than itself. Its abundance is 25317886330968

Bases of 18909210394368

• Binary: 100010011001010100100110001001011111100000000₂
• Hexadecimal: 0x1132A4C4BF00
• Base-36: 6PARRNB40

Squares and roots of 18909210394368

• 18909210394368 squared (18909210394368²) is 357558237738474814086119424
• 18909210394368 cubed (18909210394368³) is 6761143945636272439712225755009785004032
• The square root of 18909210394368 is 4348472.1908238071
• The cube root of 18909210394368 is 26641.4463051585

Scales and comparisons

• 18,909,210,394,368 seconds is equal to 601,254 years, 20 weeks, 5 days, 18 hours, 52 minutes, 48 seconds.
• To count from 1 to 18,909,210,394,368 would take you about one million, five hundred three thousand, one hundred thirty-six 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 18909210394368 cubic inches would be around 2220.1 feet tall.

Recreational maths with 18909210394368

• 18909210394368 backwards is 86349301290981
• 18909210394368 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18909210394368's digits is 63
• More coming soon!