20742813

Names of 20742813

• Cardinal: 20742813 can be written as Twenty million, seven hundred forty-two thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 2.0742813 × 10⁷

Factors of 20742813

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 116

Divisors of 20742813

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 13 19 21 31 39 43 57 63 91 93 117 129 133 171 217 247 273 279 301 387 399 403 559 589 651 741 817 819 903 1197 1209 1333 1677 1729 1767 1953 2223 2451 2709 2821 3627 3913 3999 4123 5031 5187 5301 5719 7353 7657 8463 9331 10621 11739 11997 12369 15561 17157 17329 22971 25327 25389 27993 31863 35217 37107 51471 51987 53599 68913 74347 75981 83979 95589 121303 155961 160797 177289 223041 227943 329251 363909 482391 531867 669123 987753 1091727 1595601 2304757 2963259 6914271 20742813
• Sum of all divisors σ(n): 41000960
• Sum of proper divisors (its aliquot sum) s(n): 20258147
• 20742813 is a deficient number, because the sum of its proper divisors (20258147) is less than itself. Its deficiency is 484666

Bases of 20742813

• Binary: 1001111001000001010011101₂
• Hexadecimal: 0x13C829D
• Base-36: CCL99

Squares and roots of 20742813

• 20742813 squared (20742813²) is 430264291152969
• 20742813 cubed (20742813³) is 8924891731963590361797
• The square root of 20742813 is 4554.4278455147
• The cube root of 20742813 is 274.7615034141

Scales and comparisons

• 20,742,813 seconds is equal to 34 weeks, 2 days, 1 hour, 53 minutes, 33 seconds.
• To count from 1 to 20,742,813 would take you about fifty-one weeks!

  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 20742813 cubic inches would be around 22.9 feet tall.

Recreational maths with 20742813

• 20742813 backwards is 31824702
• The number of decimal digits it has is: 8
• The sum of 20742813's digits is 27
• More coming soon!