18990371409408

Names of 18990371409408

• Cardinal: 18990371409408 can be written as Eighteen trillion, nine hundred ninety billion, three hundred seventy-one million, four hundred nine thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.8990371409408 × 10¹³

Factors of 18990371409408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 7200

Divisors of 18990371409408

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 64 72 84 96 98 109 112 126 128 144 147 168 192 196 218 224 252 256 288 294 327 336 384 392 436 441 448 504 512 576 588 654 672 763 768 784 872 882 896 981 1008 1152 1176 1308 1344 1526 1536 1568 1744 1764 1792 1962 2016 2289 2304 2352 2616 2688 3052 3136 3488 3528 3584 3924 4032 4578 4608 4704 5232 5341 5376 6104 6272 6867 6976 7056 7079 7848 8064 9156 9408 10464 10682 10752 11881 12208 12544 13734 13952 14112 14158 15696 16023 16128 18312 18816 20928 21237 21364 23762 24416 25088 27468 27904 28224 28316 31392 32046 32256 35643 36624 37632 41856 42474 42728 47524 48069 48832 49553 54936 55808 56448 56632 62784 63711 64092 71286 73248 75264 83167 83712 84948 85456 95048 96138 97664 99106 106929 109872 112896 113264 125568 127422 128184 142572 146496 148659 166334 167424 169896 170912 190096 192276 195328 198212 213858 219744 225792 226528 249501 251136 254844 256368 285144 292992 297318 332668 339792 341824 346871 380192 384552 390656 396424 427716 439488 445977 453056 499002 502272 509688 512736 570288 582169 585984 594636 665336 679584 683648 693742 748503 760384 769104 771611 792848 855432 878976 891954 906112 998004 1019376 1025472 1040613 1140576 1164338 1171968 1189272 1330672 1359168 1367296 1387484 1497006 1520768 1538208 1543222 1585696 1710864 1746507 1757952 1783908 1812224 1996008 2038752 2050944 2081226 2281152 2314833 2328676 2378544 2661344 2718336 2734592 2774968 2994012 3041536 3076416 3086444 3121839 3171392 3421728 3493014 3515904 3567816 3624448 3992016 4077504 4101888 4162452 4562304 4629666 4657352 4757088 5239521 5322688 5401277 5436672 5549936 5988024 6083072 6152832 6172888 6243678 6342784 6843456 6944499 6986028 7135632 7984032 8155008 8203776 8324904 9124608 9259332 9314704 9514176 10479042 10645376 10802554 10873344 11099872 11976048 12305664 12345776 12487356 12685568 13686912 13888998 13972056 14271264 15968064 16203831 16310016 16649808 18249216 18518664 18629408 19028352 20958084 21290752 21605108 22199744 23952096 24611328 24691552 24974712 25371136 27373824 27777996 27944112 28542528 31936128 32407662 32620032 33299616 37037328 37258816 37808939 38056704 41916168 42581504 43210216 44399488 47904192 48611493 49383104 49949424 54747648 55555992 55888224 57085056 63872256 64815324 66599232 74074656 74517632 75617878 76113408 83832336 84105599 86420432 88798976 95808384 97222986 98766208 99898848 111111984 111776448 113426817 114170112 127744512 129630648 133198464 148149312 149035264 151235756 167664672 168211198 172840864 177597952 191616768 194445972 197532416 199797696 222223968 223552896 226853634 228340224 252316797 259261296 266396928 296298624 298070528 302471512 335329344 336422396 340280451 345681728 383233536 388891944 395064832 399595392 444447936 447105792 453707268 504633594 518522592 532793856 588739193 592597248 604943024 670658688 672844792 680560902 691363456 756950391 777783888 799190784 888895872 894211584 907414536 1009267188 1037045184 1177478386 1185194496 1209886048 1341317376 1345689584 1361121804 1382726912 1513900782 1555567776 1598381568 1766217579 1777791744 1814829072 2018534376 2074090368 2354956772 2419772096 2682634752 2691379168 2722243608 2765453824 3027801564 3111135552 3532435158 3555583488 3629658144 4037068752 4121174351 4148180736 4709913544 4839544192 5298652737 5382758336 5444487216 6055603128 6222271104 7064870316 7259316288 8074137504 8242348702 8296361472 9419827088 9679088384 10597305474 10765516672 10888974432 12111206256 12363523053 12444542208 14129740632 14518632576 16148275008 16484697404 18839654176 19358176768 21194610948 21531033344 21777948864 24222412512 24727046106 24889084416 28259481264 29037265152 32296550016 32969394808 37090569159 37679308352 42389221896 43062066688 43555897728 48444825024 49454092212 56518962528 58074530304 64593100032 65938789616 74181138318 75358616704 84778443792 87111795456 96889650048 98908184424 113037925056 129186200064 131877579232 148362276636 150717233408 169556887584 174223590912 193779300096 197816368848 226075850112 263755158464 296724553272 301434466816 339113775168 387558600192 395632737696 452151700224 527510316928 593449106544 678227550336 791265475392 904303400448 1055020633856 1186898213088 1356455100672 1582530950784 2110041267712 2373796426176 2712910201344 3165061901568 4747592852352 6330123803136 9495185704704 18990371409408
• Sum of all divisors σ(n): 64355030780040
• Sum of proper divisors (its aliquot sum) s(n): 45364659370632
• 18990371409408 is an abundant number, because the sum of its proper divisors (45364659370632) is greater than itself. Its abundance is 26374287961224

Bases of 18990371409408

• Binary: 100010100010110001010010101111000111000000000₂
• Hexadecimal: 0x11458A578E00
• Base-36: 6QC20TJ40

Squares and roots of 18990371409408

• 18990371409408 squared (18990371409408²) is 360634206267260788350910464
• 18990371409408 cubed (18990371409408³) is 6848577519952336644002972736311695245312
• The square root of 18990371409408 is 4357794.3284886679
• The cube root of 18990371409408 is 26679.5081910171

Scales and comparisons

• 18,990,371,409,408 seconds is equal to 603,835 years, 3 weeks, 4 days, 9 hours, 16 minutes, 48 seconds.
• To count from 1 to 18,990,371,409,408 would take you about one million, five hundred nine thousand, five hundred eighty-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 18990371409408 cubic inches would be around 2223.3 feet tall.

Recreational maths with 18990371409408

• 18990371409408 backwards is 80490417309981
• 18990371409408 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18990371409408's digits is 63
• More coming soon!