18723561690961428

Names of 18723561690961428

• Cardinal: 18723561690961428 can be written as Eighteen quadrillion, seven hundred twenty-three trillion, five hundred sixty-one billion, six hundred ninety million, nine hundred sixty-one thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8723561690961428 × 10¹⁶

Factors of 18723561690961428

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 470150901

Divisors of 18723561690961428

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 42 49 84 89 98 147 178 196 267 294 356 534 588 623 761 1068 1246 1522 1869 2283 2492 3044 3738 4361 4566 5327 7476 8722 9132 10654 13083 15981 17444 21308 26166 31962 37289 52332 63924 67729 74578 111867 135458 149156 203187 223734 270916 406374 447468 474103 812748 948206 1422309 1896412 2844618 3318721 5689236 6637442 9956163 13274884 19912326 39824652 470150039 940300078 1410450117 1880600156 2820900234 3291050273 5641800468 6582100546 9873150819 13164201092 19746301638 23037351911 39492603276 41843353471 46074703822 69112055733 83686706942 92149407644 125530060413 138224111466 167373413884 251060120826 276448222932 292903474297 357784179679 502120241652 585806948594 715568359358 878710422891 1073352539037 1171613897188 1431136718716 1757420845782 2050324320079 2146705078074 2504489257753 3514841691564 4100648640158 4293410156148 5008978515506 6150972960237 7513467773259 8201297280316 10017957031012 12301945920474 15026935546518 17531424804271 24603891840948 30053871093036 31842791991431 35062849608542 52594274412813 63685583982862 70125699217084 95528375974293 105188548825626 127371167965724 191056751948586 210377097651252 222899543940017 382113503897172 445799087880034 668698631820051 891598175760068 1337397263640102 1560296807580119 2674794527280204 3120593615160238 4680890422740357 6241187230320476 9361780845480714 18723561690961428
• Sum of all divisors σ(n): 51459652030147200
• Sum of proper divisors (its aliquot sum) s(n): 32736090339185772
• 18723561690961428 is an abundant number, because the sum of its proper divisors (32736090339185772) is greater than itself. Its abundance is 14012528648224344

Bases of 18723561690961428

• Binary: 1000010100001001111101011101011100001010001011000010100₂
• Hexadecimal: 0x4284FAEB851614
• Base-36: 54CY5HUREVO

Squares and roots of 18723561690961428

• 18723561690961428 squared (18723561690961428²) is 350571762395238369037910983799184
• 18723561690961428 cubed (18723561690961428³) is 6563952020316317273312441488559992876993041874752
• The square root of 18723561690961428 is 136834066.2662680211
• The cube root of 18723561690961428 is 265539.7173578149

Scales and comparisons

• 18,723,561,690,961,428 seconds is equal to 595,351,345 years, 51 weeks, 4 days, 16 hours, 23 minutes, 48 seconds.
• To count from 1 to 18,723,561,690,961,428 would take you about one billion, seven hundred eighty-six million, fifty-four thousand and 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 18723561690961428 cubic inches would be around 22128.3 feet tall.

Recreational maths with 18723561690961428

• 18723561690961428 backwards is 82416909616532781
• The number of decimal digits it has is: 17
• The sum of 18723561690961428's digits is 78
• More coming soon!