21035013

Names of 21035013

• Cardinal: 21035013 can be written as Twenty-one million, thirty-five thousand and thirteen.

Scientific notation

• Scientific notation: 2.1035013 × 10⁷

Factors of 21035013

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 7011674

Divisors of 21035013

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3 7011671 21035013
• Sum of all divisors σ(n): 28046688
• Sum of proper divisors (its aliquot sum) s(n): 7011675
• 21035013 is a deficient number, because the sum of its proper divisors (7011675) is less than itself. Its deficiency is 14023338

Bases of 21035013

• Binary: 1010000001111100000000101₂
• Hexadecimal: 0x140F805
• Base-36: CIUPX

Squares and roots of 21035013

• 21035013 squared (21035013²) is 442471771910169
• 21035013 cubed (21035013³) is 9307399474263439747197
• The square root of 21035013 is 4586.3943354229
• The cube root of 21035013 is 276.0456629973

Scales and comparisons

• 21,035,013 seconds is equal to 34 weeks, 5 days, 11 hours, 3 minutes, 33 seconds.
• To count from 1 to 21,035,013 would take you about four 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 21035013 cubic inches would be around 23 feet tall.

Recreational maths with 21035013

• 21035013 backwards is 31053012
• The number of decimal digits it has is: 8
• The sum of 21035013's digits is 15
• More coming soon!