20984210

Names of 20984210

• Cardinal: 20984210 can be written as Twenty million, nine hundred eighty-four thousand, two hundred ten.

Scientific notation

• Scientific notation: 2.098421 × 10⁷

Factors of 20984210

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 219

Divisors of 20984210

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 13 26 31 41 62 65 82 127 130 155 205 254 310 403 410 533 635 806 1066 1270 1271 1651 2015 2542 2665 3302 3937 4030 5207 5330 6355 7874 8255 10414 12710 16510 16523 19685 26035 33046 39370 51181 52070 67691 82615 102362 135382 161417 165230 255905 322834 338455 511810 676910 807085 1614170 2098421 4196842 10492105 20984210
• Sum of all divisors σ(n): 43352064
• Sum of proper divisors (its aliquot sum) s(n): 22367854
• 20984210 is an abundant number, because the sum of its proper divisors (22367854) is greater than itself. Its abundance is 1383644

Bases of 20984210

• Binary: 1010000000011000110010010₂
• Hexadecimal: 0x1403192
• Base-36: CHRIQ

Squares and roots of 20984210

• 20984210 squared (20984210²) is 440337069324100
• 20984210 cubed (20984210³) is 9240125533481472461000
• The square root of 20984210 is 4580.8525407397
• The cube root of 20984210 is 275.8232520257

Scales and comparisons

• 20,984,210 seconds is equal to 34 weeks, 4 days, 20 hours, 56 minutes, 50 seconds.
• To count from 1 to 20,984,210 would take you about seven hours!

  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 20984210 cubic inches would be around 23 feet tall.

Recreational maths with 20984210

• 20984210 backwards is 01248902
• 20984210 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20984210's digits is 26
• More coming soon!