18538414020

Names of 18538414020

• Cardinal: 18538414020 can be written as Eighteen billion, five hundred thirty-eight million, four hundred fourteen thousand and twenty.

Scientific notation

• Scientific notation: 1.853841402 × 10¹⁰

Factors of 18538414020

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3979

Divisors of 18538414020

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 49 60 63 70 84 90 98 105 126 140 147 180 196 210 245 252 294 315 420 441 490 588 630 631 735 882 980 1260 1262 1470 1764 1893 2205 2524 2940 3155 3331 3786 4410 4417 5679 6310 6662 7572 8820 8834 9465 9993 11358 12620 13251 13324 16655 17668 18930 19986 22085 22716 23317 26502 28395 29979 30919 33310 37860 39753 39972 44170 46634 49965 53004 56790 59958 61838 66255 66620 69951 79506 88340 92757 93268 99930 113580 116585 119916 123676 132510 139902 149895 154595 159012 163219 185514 198765 199860 209853 233170 265020 278271 279804 299790 309190 326438 349755 371028 397530 419706 463785 466340 489657 556542 599580 618380 652876 699510 795060 816095 839412 927570 979314 1049265 1113084 1391355 1399020 1468971 1632190 1855140 1958628 2098530 2101861 2448285 2782710 2937942 3264380 4197060 4203722 4896570 5565420 5875884 6305583 7344855 8407444 9793140 10509305 12611166 14689710 14713027 18916749 21018610 25222332 29379420 29426054 31527915 37833498 42037220 44139081 58852108 63055830 73565135 75666996 88278162 94583745 102991189 126111660 132417243 147130270 176556324 189167490 205982378 220695405 264834486 294260540 308973567 378334980 411964756 441390810 514955945 529668972 617947134 662086215 882781620 926920701 1029911890 1235894268 1324172430 1544867835 1853841402 2059823780 2648344860 3089735670 3707682804 4634603505 6179471340 9269207010 18538414020
• Sum of all divisors σ(n): 65537454528
• Sum of proper divisors (its aliquot sum) s(n): 46999040508
• 18538414020 is an abundant number, because the sum of its proper divisors (46999040508) is greater than itself. Its abundance is 28460626488

Bases of 18538414020

• Binary: 10001010000111110011011111111000100₂
• Hexadecimal: 0x450F9BFC4
• Base-36: 8ILAJT0

Squares and roots of 18538414020

• 18538414020 squared (18538414020²) is 343672794376932560400
• 18538414020 cubed (18538414020³) is 6371148549569903742313856808000
• The square root of 18538414020 is 136155.8446046295
• The cube root of 18538414020 is 2646.6155450439

Scales and comparisons

• 18,538,414,020 seconds is equal to 589 years, 24 weeks, 23 hours, 27 minutes.
• To count from 1 to 18,538,414,020 would take you about one thousand, one hundred seventy-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 18538414020 cubic inches would be around 220.6 feet tall.

Recreational maths with 18538414020

• 18538414020 backwards is 02041483581
• 18538414020 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18538414020's digits is 36
• More coming soon!