18319103985

Names of 18319103985

• Cardinal: 18319103985 can be written as Eighteen billion, three hundred nineteen million, one hundred three thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 1.8319103985 × 10¹⁰

Factors of 18319103985

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1228

Divisors of 18319103985

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 7 13 15 21 35 39 49 65 91 105 139 147 169 195 245 273 417 455 507 637 695 735 845 973 1061 1183 1365 1807 1911 2085 2535 2919 3183 3185 3549 4865 5305 5421 5915 6811 7427 8281 9035 9555 12649 13793 14595 15915 17745 20433 22281 23491 24843 27105 34055 37135 37947 41379 41405 51989 63245 68965 70473 88543 96551 102165 111405 117455 124215 147479 155967 164437 179309 189735 206895 259945 265629 289653 352365 442437 442715 482755 493311 537927 675857 737395 779835 822185 896545 1032353 1151059 1255163 1328145 1448265 1917227 2027571 2212185 2466555 2689635 3097059 3379285 3453177 3765489 5161765 5751681 5755295 6275815 7226471 8786141 9586135 10137855 13420589 15485295 17265885 18827445 21679413 24923951 26358423 28758405 36132355 40261767 43930705 67102945 74771853 93944123 108397065 124619755 131792115 174467657 201308835 281832369 373859265 469720615 523402971 872338285 1221273599 1409161845 2617014855 3663820797 6106367995 18319103985
• Sum of all divisors σ(n): 37221145920
• Sum of proper divisors (its aliquot sum) s(n): 18902041935
• 18319103985 is an abundant number, because the sum of its proper divisors (18902041935) is greater than itself. Its abundance is 582937950

Bases of 18319103985

• Binary: 10001000011111001110101011111110001₂
• Hexadecimal: 0x443E757F1
• Base-36: 8EYPZ3L

Squares and roots of 18319103985

• 18319103985 squared (18319103985²) is 335589570813242880225
• 18319103985 cubed (18319103985³) is 6147700244009317337902675196625
• The square root of 18319103985 is 135348.0845265273
• The cube root of 18319103985 is 2636.1376019245

Scales and comparisons

• 18,319,103,985 seconds is equal to 582 years, 25 weeks, 3 days, 15 hours, 59 minutes, 45 seconds.
• To count from 1 to 18,319,103,985 would take you about one thousand, one hundred sixty-four 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 18319103985 cubic inches would be around 219.7 feet tall.

Recreational maths with 18319103985

• 18319103985 backwards is 58930191381
• The number of decimal digits it has is: 11
• The sum of 18319103985's digits is 48
• More coming soon!