21117300

Names of 21117300

• Cardinal: 21117300 can be written as Twenty-one million, one hundred seventeen thousand, three hundred.

Scientific notation

• Scientific notation: 2.11173 × 10⁷

Factors of 21117300

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1690

Divisors of 21117300

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 25 30 43 50 60 75 86 100 129 150 172 215 258 300 430 516 645 860 1075 1290 1637 2150 2580 3225 3274 4300 4911 6450 6548 8185 9822 12900 16370 19644 24555 32740 40925 49110 70391 81850 98220 122775 140782 163700 211173 245550 281564 351955 422346 491100 703910 844692 1055865 1407820 1759775 2111730 3519550 4223460 5279325 7039100 10558650 21117300
• Sum of all divisors σ(n): 62558496
• Sum of proper divisors (its aliquot sum) s(n): 41441196
• 21117300 is an abundant number, because the sum of its proper divisors (41441196) is greater than itself. Its abundance is 20323896

Bases of 21117300

• Binary: 1010000100011100101110100₂
• Hexadecimal: 0x1423974
• Base-36: CKM7O

Squares and roots of 21117300

• 21117300 squared (21117300²) is 445940359290000
• 21117300 cubed (21117300³) is 9417056349234717000000
• The square root of 21117300 is 4595.3563517969
• The cube root of 21117300 is 276.4051495679

Scales and comparisons

• 21,117,300 seconds is equal to 34 weeks, 6 days, 9 hours, 55 minutes.
• To count from 1 to 21,117,300 would take you about two days!

  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 21117300 cubic inches would be around 23 feet tall.

Recreational maths with 21117300

• 21117300 backwards is 00371112
• 21117300 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21117300's digits is 15
• More coming soon!