18890133909019725

Names of 18890133909019725

• Cardinal: 18890133909019725 can be written as Eighteen quadrillion, eight hundred ninety trillion, one hundred thirty-three billion, nine hundred nine million, nineteen thousand, seven hundred twenty-five.

Scientific notation

• Scientific notation: 1.8890133909019725 × 10¹⁶

Factors of 18890133909019725

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 365577

Divisors of 18890133909019725

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 11 15 25 31 33 41 55 75 93 123 155 165 205 275 341 451 465 615 775 825 961 1023 1025 1271 1353 1597 1705 2255 2325 2883 3075 3813 4791 4805 5115 6355 6765 7985 8525 10571 11275 13981 14415 17567 19065 23955 24025 25575 31713 31775 33825 39401 39925 41943 49507 52701 52855 65477 69905 72075 87835 95325 118203 119775 148521 158565 196431 197005 209715 247535 263505 264275 327385 349525 363889 433411 439175 544577 591015 720247 742605 792825 982155 985025 1048575 1091667 1237675 1300233 1317525 1534717 1633731 1636925 1819445 2029787 2160741 2167055 2722885 2955075 3601235 3713025 4002779 4604151 4910775 5458335 6089361 6501165 7673585 8168655 9097225 10148935 10803705 10835275 11280559 12008337 13614425 14919449 16881887 18006175 20013895 22327657 23020755 27291675 30446805 32505825 33841677 38367925 40843275 44758347 50645661 50744675 54018525 56402795 60041685 62923397 66982971 74597245 84409435 100069475 111638285 115103775 124086149 152234025 164113939 169208385 188770191 223791735 253228305 282013975 300208425 314616985 334914855 349697329 372258447 372986225 422047175 462502919 492341817 558191425 581130733 620430745 692157367 820569695 846041925 943850955 1049091987 1118958675 1266141525 1387508757 1573084925 1674574275 1743392199 1748486645 1861292235 2076472101 2312514595 2461709085 2905653665 3102153725 3460786835 3846670619 4102848475 4719254775 5087532109 5245459935 6392438063 6937543785 8716960995 8742433225 9306461175 10382360505 11540011857 11562572975 12308545425 14337590489 14528268325 15262596327 17303934175 18015052723 19177314189 19233353095 23826360053 25437660545 26227299675 31962190315 34687718925 43012771467 43584804975 51911802525 54045158169 57700059285 71479080159 71687952445 76312981635 90075263615 95886570945 96166765475 119131800265 127188302725 157713495379 159810951575 198165579953 215063857335 262089960583 270225790845 288500296425 357395400795 358439762225 381564908175 450376318075 473140486137 479432854725 558466634413 594496739859 595659001325 738617161643 786269881749 788567476895 990827899765 1075319286675 1310449802915 1351128954225 1675399903239 1786977003975 2215851484929 2365702430685 2792333172065 2972483699295 3693085808215 3931349408745 3942837384475 4954139498825 6143132978543 6552249014575 8124788778073 8376999516195 11079257424645 11828512153425 13961665860325 14862418496475 18429398935629 18465429041075 19656747043725 22897132010933 24374366334219 30715664892715 40623943890365 41884997580975 55396287123225 68691396032799 92146994678145 114485660054665 121871831671095 153578324463575 203119719451825 251868452120263 343456980163995 460734973390725 572428300273325 609359158355475 755605356360789 1259342260601315 1717284900819975 3778026781803945 6296711303006575 18890133909019725
• Sum of all divisors σ(n): 36086799450764160
• Sum of proper divisors (its aliquot sum) s(n): 17196665541744435
• 18890133909019725 is a deficient number, because the sum of its proper divisors (17196665541744435) is less than itself. Its deficiency is 1693468367275290

Bases of 18890133909019725

• Binary: 1000011000111000111101000001001011010000001110001001101₂
• Hexadecimal: 0x431C7A09681C4D
• Base-36: 55ZZRPSMJIL

Squares and roots of 18890133909019725

• 18890133909019725 squared (18890133909019725²) is 356837159100696836063710439075625
• 18890133909019725 cubed (18890133909019725³) is 6740701719126339861419371894631099116278891703125
• The square root of 18890133909019725 is 137441383.5386552161
• The cube root of 18890133909019725 is 266324.8424994217

Scales and comparisons

• 18,890,133,909,019,725 seconds is equal to 600,647,827 years, 14 weeks, 6 days, 4 hours, 8 minutes, 45 seconds.
• To count from 1 to 18,890,133,909,019,725 would take you about one billion, eight hundred one million, nine hundred forty-three thousand, four hundred eighty-one 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 18890133909019725 cubic inches would be around 22193.7 feet tall.

Recreational maths with 18890133909019725

• 18890133909019725 backwards is 52791090933109881
• 18890133909019725 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18890133909019725's digits is 75
• More coming soon!