21948800

Names of 21948800

• Cardinal: 21948800 can be written as Twenty-one million, nine hundred forty-eight thousand, eight hundred.

Scientific notation

• Scientific notation: 2.19488 × 10⁷

Factors of 21948800

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 26

Divisors of 21948800

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 25 32 38 40 50 64 76 80 95 100 128 152 160 190 200 304 320 361 380 400 475 608 640 722 760 800 950 1216 1444 1520 1600 1805 1900 2432 2888 3040 3200 3610 3800 5776 6080 6859 7220 7600 9025 11552 12160 13718 14440 15200 18050 23104 27436 28880 30400 34295 36100 46208 54872 57760 60800 68590 72200 109744 115520 137180 144400 171475 219488 231040 274360 288800 342950 438976 548720 577600 685900 877952 1097440 1155200 1371800 2194880 2743600 4389760 5487200 10974400 21948800
• Sum of all divisors σ(n): 57232200
• Sum of proper divisors (its aliquot sum) s(n): 35283400
• 21948800 is an abundant number, because the sum of its proper divisors (35283400) is greater than itself. Its abundance is 13334600

Bases of 21948800

• Binary: 1010011101110100110000000₂
• Hexadecimal: 0x14EE980
• Base-36: D2FSW

Squares and roots of 21948800

• 21948800 squared (21948800²) is 481749821440000
• 21948800 cubed (21948800³) is 10573830480822272000000
• The square root of 21948800 is 4684.9546422563
• The cube root of 21948800 is 279.9863938967

Scales and comparisons

• 21,948,800 seconds is equal to 36 weeks, 2 days, 53 minutes, 20 seconds.
• To count from 1 to 21,948,800 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 21948800 cubic inches would be around 23.3 feet tall.

Recreational maths with 21948800

• 21948800 backwards is 00884912
• 21948800 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21948800's digits is 32
• More coming soon!