16821089215

Names of 16821089215

• Cardinal: 16821089215 can be written as Sixteen billion, eight hundred twenty-one million, eighty-nine thousand, two hundred fifteen.

Scientific notation

• Scientific notation: 1.6821089215 × 10¹⁰

Factors of 16821089215

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8323

Divisors of 16821089215

• Number of divisors d(n): 72
• Complete list of divisors:
  1 5 7 19 23 35 49 95 115 133 161 245 361 437 665 805 931 1127 1805 2185 2527 3059 4655 5635 8269 8303 12635 15295 17689 21413 41345 41515 57883 58121 88445 107065 157111 190187 289415 290605 405181 406847 785555 950935 1099777 1331309 2025905 2034235 2985109 3613553 5498885 6656545 7698439 9319163 14925545 18067765 20895763 25294871 38492195 46595815 68657507 104478815 126474355 146270341 177064097 343287535 480602549 731351705 885320485 2403012745 3364217843 16821089215
• Sum of all divisors σ(n): 25862340960
• Sum of proper divisors (its aliquot sum) s(n): 9041251745
• 16821089215 is a deficient number, because the sum of its proper divisors (9041251745) is less than itself. Its deficiency is 7779837470

Bases of 16821089215

• Binary: 1111101010100111010111001110111111₂
• Hexadecimal: 0x3EA9D73BF
• Base-36: 7Q6UBI7

Squares and roots of 16821089215

• 16821089215 squared (16821089215²) is 282949042378989316225
• 16821089215 cubed (16821089215³) is 4759511085155795129752572013375
• The square root of 16821089215 is 129696.1418662869
• The cube root of 16821089215 is 2562.2295647661

Scales and comparisons

• 16,821,089,215 seconds is equal to 534 years, 44 weeks, 4 days, 12 hours, 46 minutes, 55 seconds.
• To count from 1 to 16,821,089,215 would take you about one thousand and sixty-nine 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 16821089215 cubic inches would be around 213.5 feet tall.

Recreational maths with 16821089215

• 16821089215 backwards is 51298012861
• The number of decimal digits it has is: 11
• The sum of 16821089215's digits is 43
• More coming soon!