21224294

Names of 21224294

• Cardinal: 21224294 can be written as Twenty-one million, two hundred twenty-four thousand, two hundred ninety-four.

Scientific notation

• Scientific notation: 2.1224294 × 10⁷

Factors of 21224294

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 720

Divisors of 21224294

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 7 13 14 26 91 182 277 421 554 842 1939 2947 3601 3878 5473 5894 7202 10946 25207 38311 50414 76622 116617 233234 816319 1516021 1632638 3032042 10612147 21224294
• Sum of all divisors σ(n): 39418176
• Sum of proper divisors (its aliquot sum) s(n): 18193882
• 21224294 is a deficient number, because the sum of its proper divisors (18193882) is less than itself. Its deficiency is 3030412

Bases of 21224294

• Binary: 1010000111101101101100110₂
• Hexadecimal: 0x143DB66
• Base-36: CMWRQ

Squares and roots of 21224294

• 21224294 squared (21224294²) is 450470655798436
• 21224294 cubed (21224294³) is 9560921637038810404184
• The square root of 21224294 is 4606.9831777423
• The cube root of 21224294 is 276.8711795711

Scales and comparisons

• 21,224,294 seconds is equal to 35 weeks, 15 hours, 38 minutes, 14 seconds.
• To count from 1 to 21,224,294 would take you about four days!

  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 21224294 cubic inches would be around 23.1 feet tall.

Recreational maths with 21224294

• 21224294 backwards is 49242212
• 21224294 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21224294's digits is 26
• More coming soon!