21829471

Names of 21829471

• Cardinal: 21829471 can be written as Twenty-one million, eight hundred twenty-nine thousand, four hundred seventy-one.

Scientific notation

• Scientific notation: 2.1829471 × 10⁷

Factors of 21829471

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 325880

Divisors of 21829471

• Number of divisors d(n): 4
• Complete list of divisors:
  1 67 325813 21829471
• Sum of all divisors σ(n): 22155352
• Sum of proper divisors (its aliquot sum) s(n): 325881
• 21829471 is a deficient number, because the sum of its proper divisors (325881) is less than itself. Its deficiency is 21503590

Bases of 21829471

• Binary: 1010011010001011101011111₂
• Hexadecimal: 0x14D175F
• Base-36: CZVQ7

Squares and roots of 21829471

• 21829471 squared (21829471²) is 476525804139841
• 21829471 cubed (21829471³) is 10402306222222339054111
• The square root of 21829471 is 4672.2019434095
• The cube root of 21829471 is 279.4780710797

Scales and comparisons

• 21,829,471 seconds is equal to 36 weeks, 15 hours, 44 minutes, 31 seconds.
• To count from 1 to 21,829,471 would take you about two weeks!

  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 21829471 cubic inches would be around 23.3 feet tall.

Recreational maths with 21829471

• 21829471 backwards is 17492812
• The number of decimal digits it has is: 8
• The sum of 21829471's digits is 34
• More coming soon!