18121947710

Names of 18121947710

• Cardinal: 18121947710 can be written as Eighteen billion, one hundred twenty-one million, nine hundred forty-seven thousand, seven hundred ten.

Scientific notation

• Scientific notation: 1.812194771 × 10¹⁰

Factors of 18121947710

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 811

Divisors of 18121947710

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 5 10 23 46 61 89 115 122 178 230 305 445 529 610 631 890 1058 1262 1403 2047 2645 2806 3155 4094 5290 5429 6310 7015 10235 10858 14030 14513 20470 27145 29026 32269 38491 47081 54290 56159 64538 72565 76982 94162 112318 124867 145130 161345 192455 235405 249734 280795 322690 333799 384910 470810 561590 624335 667598 885293 1248670 1291657 1668995 1770586 2583314 2871941 3337990 3425699 4426465 5743882 6458285 6851398 8852930 12916570 14359705 17128495 20361739 28719410 29708111 34256990 40723478 59416222 78791077 101808695 148540555 157582154 203617390 297081110 393955385 787910770 1812194771 3624389542 9060973855 18121947710
• Sum of all divisors σ(n): 35103378240
• Sum of proper divisors (its aliquot sum) s(n): 16981430530
• 18121947710 is a deficient number, because the sum of its proper divisors (16981430530) is less than itself. Its deficiency is 1140517180

Bases of 18121947710

• Binary: 10000111000001001101111101000111110₂
• Hexadecimal: 0x43826FA3E
• Base-36: 8BPC8CE

Squares and roots of 18121947710

• 18121947710 squared (18121947710²) is 328404988803974244100
• 18121947710 cubed (18121947710³) is 5951338034808756691766976011000
• The square root of 18121947710 is 134617.7837805987
• The cube root of 18121947710 is 2626.6464753365

Scales and comparisons

• 18,121,947,710 seconds is equal to 576 years, 11 weeks, 3 days, 18 hours, 21 minutes, 50 seconds.
• To count from 1 to 18,121,947,710 would take you about one thousand, one hundred fifty-two 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 18121947710 cubic inches would be around 218.9 feet tall.

Recreational maths with 18121947710

• 18121947710 backwards is 01774912181
• The number of decimal digits it has is: 11
• The sum of 18121947710's digits is 41
• More coming soon!