18649360517872

Names of 18649360517872

• Cardinal: 18649360517872 can be written as Eighteen trillion, six hundred forty-nine billion, three hundred sixty million, five hundred seventeen thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8649360517872 × 10¹³

Factors of 18649360517872

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 14109

Divisors of 18649360517872

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 4 7 8 14 16 28 29 56 58 112 116 203 232 406 464 812 841 1624 1682 3248 3364 5887 6728 11774 13456 14071 23548 28142 47096 56284 94192 98497 112568 196994 225136 393988 408059 787976 816118 1575952 1632236 2856413 3264472 5712826 6528944 11425652 11833711 22851304 23667422 45702608 47334844 82835977 94669688 165671954 189339376 197993041 331343908 395986082 662687816 791972164 1325375632 1385951287 1583944328 2771902574 3167888656 5543805148 5741798189 11087610296 11483596378 22175220592 22967192756 40192587323 45934385512 80385174646 91868771024 160770349292 166512147481 321540698584 333024294962 643081397168 666048589924 1165585032367 1332097179848 2331170064734 2664194359696 4662340129468 9324680258936 18649360517872
• Sum of all divisors σ(n): 42771120464904
• Sum of proper divisors (its aliquot sum) s(n): 24121759947032
• 18649360517872 is an abundant number, because the sum of its proper divisors (24121759947032) is greater than itself. Its abundance is 5472399429160

Bases of 18649360517872

• Binary: 100001111011000100100100000100100101011110000₂
• Hexadecimal: 0x10F624824AF0
• Base-36: 6LZEBQN74

Squares and roots of 18649360517872

• 18649360517872 squared (18649360517872²) is 347798647725562992031408384
• 18649360517872 cubed (18649360517872³) is 6486222369062386736003624069523762638848
• The square root of 18649360517872 is 4318490.5369668231
• The cube root of 18649360517872 is 26518.8476421523

Scales and comparisons

• 18,649,360,517,872 seconds is equal to 592,991 years, 50 weeks, 6 days, 1 hour, 37 minutes, 52 seconds.
• To count from 1 to 18,649,360,517,872 would take you about one million, four hundred eighty-two thousand, four hundred seventy-nine 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 18649360517872 cubic inches would be around 2209.9 feet tall.

Recreational maths with 18649360517872

• 18649360517872 backwards is 27871506394681
• The number of decimal digits it has is: 14
• The sum of 18649360517872's digits is 67
• More coming soon!