21266729127

Names of 21266729127

• Cardinal: 21266729127 can be written as Twenty-one billion, two hundred sixty-six million, seven hundred twenty-nine thousand, one hundred twenty-seven.

Scientific notation

• Scientific notation: 2.1266729127 × 10¹⁰

Factors of 21266729127

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 996

Divisors of 21266729127

• Number of divisors d(n): 54
• Complete list of divisors:
  1 3 7 9 19 21 57 63 133 171 361 399 967 1083 1197 2527 2901 3249 6769 7581 8703 18373 20307 22743 55119 60921 128611 165357 349087 385833 935089 1047261 1157499 2443609 2805267 3141783 6545623 7330827 8415801 17766691 19636869 21992481 53300073 58910607 124366837 159900219 337567129 373100511 1012701387 1119301533 2362969903 3038104161 7088909709 21266729127
• Sum of all divisors σ(n): 37090322568
• Sum of proper divisors (its aliquot sum) s(n): 15823593441
• 21266729127 is a deficient number, because the sum of its proper divisors (15823593441) is less than itself. Its deficiency is 5443135686

Bases of 21266729127

• Binary: 10011110011100110001000100010100111₂
• Hexadecimal: 0x4F39888A7
• Base-36: 9RPNT7R

Squares and roots of 21266729127

• 21266729127 squared (21266729127²) is 452273767761190182129
• 21266729127 cubed (21266729127³) is 9618383710224936826469239171383
• The square root of 21266729127 is 145831.1665145691
• The cube root of 21266729127 is 2770.5557898513

Scales and comparisons

• 21,266,729,127 seconds is equal to 676 years, 11 weeks, 1 day, 16 hours, 45 minutes, 27 seconds.
• To count from 1 to 21,266,729,127 would take you about one thousand, three 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 21266729127 cubic inches would be around 230.9 feet tall.

Recreational maths with 21266729127

• 21266729127 backwards is 72192766212
• The number of decimal digits it has is: 11
• The sum of 21266729127's digits is 45
• More coming soon!