21310016181

Names of 21310016181

• Cardinal: 21310016181 can be written as Twenty-one billion, three hundred ten million, sixteen thousand, one hundred eighty-one.

Scientific notation

• Scientific notation: 2.1310016181 × 10¹⁰

Factors of 21310016181

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1098

Divisors of 21310016181

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 19 53 57 67 127 159 201 381 829 1007 1273 2413 2487 3021 3551 3819 6731 7239 8509 10653 15751 20193 25527 43937 47253 55543 67469 105283 127889 131811 161671 166629 202407 315849 383667 450977 485013 834803 1055317 1352931 2000377 2504409 2943779 3165951 5579999 6001131 7053961 8568563 8831337 16739997 21161883 25705689 55931801 106019981 134025259 167795403 318059943 373859933 402075777 1121579799 7103338727 21310016181
• Sum of all divisors σ(n): 31209062400
• Sum of proper divisors (its aliquot sum) s(n): 9899046219
• 21310016181 is a deficient number, because the sum of its proper divisors (9899046219) is less than itself. Its deficiency is 11410969962

Bases of 21310016181

• Binary: 10011110110001011010000101010110101₂
• Hexadecimal: 0x4F62D0AB5
• Base-36: 9SFFLPX

Squares and roots of 21310016181

• 21310016181 squared (21310016181²) is 454116789634481824761
• 21310016181 cubed (21310016181³) is 9677236135174580761207316457741
• The square root of 21310016181 is 145979.5060308125
• The cube root of 21310016181 is 2772.4342783873

Scales and comparisons

• 21,310,016,181 seconds is equal to 677 years, 30 weeks, 5 days, 16 hours, 56 minutes, 21 seconds.
• To count from 1 to 21,310,016,181 would take you about one thousand, three hundred fifty-five 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 21310016181 cubic inches would be around 231 feet tall.

Recreational maths with 21310016181

• 21310016181 backwards is 18161001312
• The number of decimal digits it has is: 11
• The sum of 21310016181's digits is 24
• More coming soon!