18918045862144

Names of 18918045862144

• Cardinal: 18918045862144 can be written as Eighteen trillion, nine hundred eighteen billion, forty-five million, eight hundred sixty-two thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 1.8918045862144 × 10¹³

Factors of 18918045862144

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1927

Divisors of 18918045862144

• Number of divisors d(n): 243
• Complete list of divisors:
  1 2 4 8 11 13 16 22 26 32 44 52 64 88 104 121 128 143 169 176 208 242 256 286 338 352 416 484 572 676 704 832 968 1144 1352 1408 1573 1664 1859 1901 1936 2288 2704 2816 3146 3328 3718 3802 3872 4576 5408 6292 7436 7604 7744 9152 10816 12584 14872 15208 15488 18304 20449 20911 21632 24713 25168 29744 30416 30976 36608 40898 41822 43264 49426 50336 59488 60832 81796 83644 98852 100672 118976 121664 163592 167288 197704 201344 230021 237952 243328 271843 321269 327184 334576 395408 402688 460042 475904 486656 543686 642538 654368 669152 790816 920084 1087372 1285076 1308736 1338304 1581632 1840168 2174744 2570152 2617472 2676608 2990273 3163264 3533959 3613801 3680336 4349488 5140304 5234944 5353216 5980546 6326528 7067918 7227602 7360672 8698976 10280608 11961092 14135836 14455204 14721344 17397952 20561216 23922184 28271672 28910408 29442688 34795904 38873549 39751811 41122432 46979413 47844368 56543344 57820816 58885376 69591808 77747098 79503622 82244864 93958826 95688736 113086688 115641632 155494196 159007244 187917652 191377472 226173376 231283264 310988392 318014488 375835304 382754944 437269921 452346752 462566528 516773543 610732369 621976784 636028976 751670608 765509888 874539842 904693504 925133056 1033547086 1221464738 1243953568 1272057952 1503341216 1749079684 2067094172 2442929476 2487907136 2544115904 3006682432 3498159368 4134188344 4885858952 4975814272 5088231808 5684508973 6013364864 6718056059 6996318736 8268376688 9771717904 9951628544 10176463616 11369017946 12026729728 13436112118 13992637472 16536753376 19543435808 22738035892 26872224236 27985274944 33073506752 39086871616 45476071784 53744448472 55970549888 66147013504 73898616649 78173743232 90952143568 107488896944 111941099776 132294027008 147797233298 156347486464 181904287136 214977793888 295594466596 363808574272 429955587776 591188933192 727617148544 859911175552 1182377866384 1455234297088 1719822351104 2364755732768 4729511465536 9459022931072 18918045862144
• Sum of all divisors σ(n): 44969326206987
• Sum of proper divisors (its aliquot sum) s(n): 26051280344843
• 18918045862144 is an abundant number, because the sum of its proper divisors (26051280344843) is greater than itself. Its abundance is 7133234482699

Bases of 18918045862144

• Binary: 100010011010010110011011001110100100100000000₂
• Hexadecimal: 0x1134B3674900
• Base-36: 6PETW21OG

Squares and roots of 18918045862144

• 18918045862144 squared (18918045862144²) is 357892459242183720252276736
• 18918045862144 cubed (18918045862144³) is 6770625957659133898893223957279994281984
• 18918045862144 is a perfect square number. Its square root is 4349488
• The cube root of 18918045862144 is 26645.5951296807

Scales and comparisons

• 18,918,045,862,144 seconds is equal to 601,535 years, 17 weeks, 5 days, 3 hours, 29 minutes, 4 seconds.
• To count from 1 to 18,918,045,862,144 would take you about one million, five hundred three thousand, eight hundred thirty-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 18918045862144 cubic inches would be around 2220.5 feet tall.

Recreational maths with 18918045862144

• 18918045862144 backwards is 44126854081981
• The number of decimal digits it has is: 14
• The sum of 18918045862144's digits is 61
• More coming soon!