21461140

Names of 21461140

• Cardinal: 21461140 can be written as Twenty-one million, four hundred sixty-one thousand, one hundred forty.

Scientific notation

• Scientific notation: 2.146114 × 10⁷

Factors of 21461140

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 150

Divisors of 21461140

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 10 17 20 34 47 68 79 85 94 158 170 188 235 289 316 340 395 470 578 790 799 940 1156 1343 1445 1580 1598 2686 2890 3196 3713 3995 5372 5780 6715 7426 7990 13430 13583 14852 15980 18565 22831 26860 27166 37130 45662 54332 63121 67915 74260 91324 114155 126242 135830 228310 252484 271660 315605 456620 631210 1073057 1262420 2146114 4292228 5365285 10730570 21461140
• Sum of all divisors σ(n): 49512960
• Sum of proper divisors (its aliquot sum) s(n): 28051820
• 21461140 is an abundant number, because the sum of its proper divisors (28051820) is greater than itself. Its abundance is 6590680

Bases of 21461140

• Binary: 1010001110111100010010100₂
• Hexadecimal: 0x1477894
• Base-36: CRZIS

Squares and roots of 21461140

• 21461140 squared (21461140²) is 460580530099600
• 21461140 cubed (21461140³) is 9884583237741729544000
• The square root of 21461140 is 4632.6169710003
• The cube root of 21461140 is 277.8972585855

Scales and comparisons

• 21,461,140 seconds is equal to 35 weeks, 3 days, 9 hours, 25 minutes, 40 seconds.
• To count from 1 to 21,461,140 would take you about fourteen 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 21461140 cubic inches would be around 23.2 feet tall.

Recreational maths with 21461140

• 21461140 backwards is 04116412
• The number of decimal digits it has is: 8
• The sum of 21461140's digits is 19
• More coming soon!