21454402

Names of 21454402

• Cardinal: 21454402 can be written as Twenty-one million, four hundred fifty-four thousand, four hundred two.

Scientific notation

• Scientific notation: 2.1454402 × 10⁷

Factors of 21454402

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 7412

Divisors of 21454402

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 1973 3946 5437 10874 10727201 21454402
• Sum of all divisors σ(n): 32203836
• Sum of proper divisors (its aliquot sum) s(n): 10749434
• 21454402 is a deficient number, because the sum of its proper divisors (10749434) is less than itself. Its deficiency is 10704968

Bases of 21454402

• Binary: 1010001110101111001000010₂
• Hexadecimal: 0x1475E42
• Base-36: CRUBM

Squares and roots of 21454402

• 21454402 squared (21454402²) is 460291365177604
• 21454402 cubed (21454402³) is 9875275985649117612808
• The square root of 21454402 is 4631.8896791699
• The cube root of 21454402 is 277.8681724057

Scales and comparisons

• 21,454,402 seconds is equal to 35 weeks, 3 days, 7 hours, 33 minutes, 22 seconds.
• To count from 1 to 21,454,402 would take you about eleven 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 21454402 cubic inches would be around 23.2 feet tall.

Recreational maths with 21454402

• 21454402 backwards is 20445412
• The number of decimal digits it has is: 8
• The sum of 21454402's digits is 22
• More coming soon!