21070

Names of 21070

• Cardinal: 21070 can be written as Twenty-one thousand and seventy.

Scientific notation

• Scientific notation: 2.107 × 10⁴

Factors of 21070

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 57

Divisors of 21070

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 5 7 10 14 35 43 49 70 86 98 215 245 301 430 490 602 1505 2107 3010 4214 10535 21070
• Sum of all divisors σ(n): 45144
• Sum of proper divisors (its aliquot sum) s(n): 24074
• 21070 is an abundant number, because the sum of its proper divisors (24074) is greater than itself. Its abundance is 3004

Bases of 21070

• Binary: 101001001001110₂
• Hexadecimal: 0x524E
• Base-36: G9A

Squares and roots of 21070

• 21070 squared (21070²) is 443944900
• 21070 cubed (21070³) is 9353919043000
• The square root of 21070 is 145.1550894733
• The cube root of 21070 is 27.6198624791

Scales and comparisons

• 21,070 seconds is equal to 5 hours, 51 minutes, 10 seconds.
• To count from 1 to 21,070 would take you about five 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 21070 cubic inches would be around 2.3 feet tall.

Recreational maths with 21070

• 21070 backwards is 07012
• 21070 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 21070's digits is 10
• More coming soon!