21740964165

Names of 21740964165

• Cardinal: 21740964165 can be written as Twenty-one billion, seven hundred forty million, nine hundred sixty-four thousand, one hundred sixty-five.

Scientific notation

• Scientific notation: 2.1740964165 × 10¹⁰

Factors of 21740964165

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1802

Divisors of 21740964165

• Number of divisors d(n): 60
• Complete list of divisors:
  1 3 5 9 15 17 27 45 51 81 85 135 153 255 405 459 765 1377 1777 2295 5331 6885 8885 15993 26655 30209 47979 79965 90627 143937 151045 239895 271881 453135 719685 815643 1359405 2446929 3157729 4078215 9473187 12234645 15788645 28419561 47365935 53681393 85258683 142097805 161044179 255776049 268406965 426293415 483132537 805220895 1278880245 1449397611 2415662685 4348192833 7246988055 21740964165
• Sum of all divisors σ(n): 41288437476
• Sum of proper divisors (its aliquot sum) s(n): 19547473311
• 21740964165 is a deficient number, because the sum of its proper divisors (19547473311) is less than itself. Its deficiency is 2193490854

Bases of 21740964165

• Binary: 10100001111110111001100100101000101₂
• Hexadecimal: 0x50FDCC945
• Base-36: 9ZK0BB9

Squares and roots of 21740964165

• 21740964165 squared (21740964165²) is 472669522823814147225
• 21740964165 cubed (21740964165³) is 10276291157600192983438759192125
• The square root of 21740964165 is 147448.1745054851
• The cube root of 21740964165 is 2790.9984806387

Scales and comparisons

• 21,740,964,165 seconds is equal to 691 years, 15 weeks, 2 days, 12 hours, 42 minutes, 45 seconds.
• To count from 1 to 21,740,964,165 would take you about one thousand, three hundred eighty-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 21740964165 cubic inches would be around 232.6 feet tall.

Recreational maths with 21740964165

• 21740964165 backwards is 56146904712
• 21740964165 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21740964165's digits is 45
• More coming soon!