21050720275

Names of 21050720275

• Cardinal: 21050720275 can be written as Twenty-one billion, fifty million, seven hundred twenty thousand, two hundred seventy-five.

Scientific notation

• Scientific notation: 2.1050720275 × 10¹⁰

Factors of 21050720275

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 182

Divisors of 21050720275

• Number of divisors d(n): 72
• Complete list of divisors:
  1 5 13 25 61 65 103 169 305 325 515 793 845 1339 1525 2197 2575 3721 3965 4225 6283 6695 10309 10985 17407 18605 19825 31415 33475 48373 51545 54925 81679 87035 93025 134017 157075 226291 241865 257725 383263 408395 435175 628849 670085 1061827 1131455 1209325 1916315 2041975 3144245 3350425 4982419 5309135 5657275 8175037 9581575 13803751 15721225 24912095 26545675 40875185 64771447 69018755 124560475 204375925 323857235 345093775 842028811 1619286175 4210144055 21050720275
• Sum of all divisors σ(n): 29027412960
• Sum of proper divisors (its aliquot sum) s(n): 7976692685
• 21050720275 is a deficient number, because the sum of its proper divisors (7976692685) is less than itself. Its deficiency is 13074027590

Bases of 21050720275

• Binary: 10011100110101110001000000000010011₂
• Hexadecimal: 0x4E6B88013
• Base-36: 9O51ZPV

Squares and roots of 21050720275

• 21050720275 squared (21050720275²) is 443132824096296075625
• 21050720275 cubed (21050720275³) is 9328265124721908351562120796875
• The square root of 21050720275 is 145088.6634958083
• The cube root of 21050720275 is 2761.1435555201

Scales and comparisons

• 21,050,720,275 seconds is equal to 669 years, 18 weeks, 14 hours, 17 minutes, 55 seconds.
• To count from 1 to 21,050,720,275 would take you about one thousand, three hundred thirty-eight 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 21050720275 cubic inches would be around 230.1 feet tall.

Recreational maths with 21050720275

• 21050720275 backwards is 57202705012
• The number of decimal digits it has is: 11
• The sum of 21050720275's digits is 31
• More coming soon!