18019491626890

Names of 18019491626890

• Cardinal: 18019491626890 can be written as Eighteen trillion, nineteen billion, four hundred ninety-one million, six hundred twenty-six thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.801949162689 × 10¹³

Factors of 18019491626890

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 67

Divisors of 18019491626890

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 5 10 13 26 47 65 94 130 169 235 338 470 611 845 1222 1690 2197 2209 3055 4394 4418 6110 7943 10985 11045 15886 21970 22090 28561 28717 39715 57122 57434 79430 103259 142805 143585 206518 285610 287170 371293 373321 516295 742586 746642 1032590 1342367 1856465 1866605 2684734 3712930 3733210 4826809 4853173 6711835 9653618 9706346 13423670 17450771 24134045 24265865 34901542 48268090 48531730 62748517 63091249 87253855 125497034 126182498 174507710 226860023 313742585 315456245 453720046 627485170 630912490 815730721 820186237 1134300115 1631461442 1640372474 2268600230 2949180299 4078653605 4100931185 5898360598 8157307210 8201862370 10662421081 14745901495 21324842162 29491802990 38339343887 53312105405 76678687774 106624210810 138611474053 191696719435 277222948106 383393438870 693057370265 1386114740530 1801949162689 3603898325378 9009745813445 18019491626890
• Sum of all divisors σ(n): 35901532623906
• Sum of proper divisors (its aliquot sum) s(n): 17882040997016
• 18019491626890 is a deficient number, because the sum of its proper divisors (17882040997016) is less than itself. Its deficiency is 137450629874

Bases of 18019491626890

• Binary: 100000110001101111101011001011011111110001010₂
• Hexadecimal: 0x10637D65BF8A
• Base-36: 6DY1G2CGA

Squares and roots of 18019491626890

• 18019491626890 squared (18019491626890²) is 324702078491558818971072100
• 18019491626890 cubed (18019491626890³) is 5850966384612423699993170991076488769000
• The square root of 18019491626890 is 4244937.1758472469
• The cube root of 18019491626890 is 26216.8702543063

Scales and comparisons

• 18,019,491,626,890 seconds is equal to 572,964 years, 4 weeks, 6 days, 20 hours, 48 minutes, 10 seconds.
• To count from 1 to 18,019,491,626,890 would take you about one million, four hundred thirty-two thousand, four hundred ten 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 18019491626890 cubic inches would be around 2184.7 feet tall.

Recreational maths with 18019491626890

• 18019491626890 backwards is 09862619491081
• The number of decimal digits it has is: 14
• The sum of 18019491626890's digits is 64
• More coming soon!