540021209

Names of 540021209

• Cardinal: 540021209 can be written as Five hundred forty million, twenty-one thousand, two hundred nine.

Scientific notation

• Scientific notation: 5.40021209 × 10⁸

Factors of 540021209

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 144

Divisors of 540021209

• Number of divisors d(n): 96
• Complete list of divisors:
  1 7 13 23 29 31 41 49 91 161 203 217 287 299 377 403 533 637 667 713 899 943 1127 1189 1271 1421 1519 2009 2093 2639 2821 3731 4669 4991 6293 6601 8323 8671 8897 9269 11687 12259 14651 15457 16523 18473 19747 20677 26117 27347 29233 32683 34937 36859 44051 46207 58261 60697 62279 64883 81809 85813 108199 115661 144739 191429 204631 258013 268801 355511 380029 424879 454181 479167 572663 600691 757393 809627 847757 1013173 1340003 1432417 1806091 1881607 2488577 2660203 3354169 5934299 11020841 13171249 17420039 18621421 23479183 41540093 77145887 540021209
• Sum of all divisors σ(n): 772208640
• Sum of proper divisors (its aliquot sum) s(n): 232187431
• 540021209 is a deficient number, because the sum of its proper divisors (232187431) is less than itself. Its deficiency is 307833778

Bases of 540021209

• Binary: 100000001100000001000111011001₂
• Hexadecimal: 0x203011D9
• Base-36: 8XIJ15

Squares and roots of 540021209

• 540021209 squared (540021209²) is 291622906169821681
• 540021209 cubed (540021209³) is 157482554361920663488032329
• The square root of 540021209 is 23238.3564177847
• The cube root of 540021209 is 814.3359459655

Scales and comparisons

• 540,021,209 seconds is equal to 17 years, 8 weeks, 6 days, 5 hours, 53 minutes, 29 seconds.
• To count from 1 to 540,021,209 would take you about twenty-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 540021209 cubic inches would be around 67.9 feet tall.

Recreational maths with 540021209

• 540021209 backwards is 902120045
• 540021209 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 540021209's digits is 23
• More coming soon!