21120000

Names of 21120000

• Cardinal: 21120000 can be written as Twenty-one million, one hundred twenty thousand.

Scientific notation

• Scientific notation: 2.112 × 10⁷

Factors of 21120000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 21

Divisors of 21120000

• Number of divisors d(n): 220
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 25 30 32 33 40 44 48 50 55 60 64 66 75 80 88 96 100 110 120 125 128 132 150 160 165 176 192 200 220 240 250 256 264 275 300 320 330 352 375 384 400 440 480 500 512 528 550 600 625 640 660 704 750 768 800 825 880 960 1000 1024 1056 1100 1200 1250 1280 1320 1375 1408 1500 1536 1600 1650 1760 1875 1920 2000 2112 2200 2400 2500 2560 2640 2750 2816 3000 3072 3200 3300 3520 3750 3840 4000 4125 4224 4400 4800 5000 5120 5280 5500 5632 6000 6400 6600 6875 7040 7500 7680 8000 8250 8448 8800 9600 10000 10560 11000 11264 12000 12800 13200 13750 14080 15000 15360 16000 16500 16896 17600 19200 20000 20625 21120 22000 24000 25600 26400 27500 28160 30000 32000 33000 33792 35200 38400 40000 41250 42240 44000 48000 52800 55000 56320 60000 64000 66000 70400 76800 80000 82500 84480 88000 96000 105600 110000 120000 128000 132000 140800 160000 165000 168960 176000 192000 211200 220000 240000 264000 281600 320000 330000 352000 384000 422400 440000 480000 528000 640000 660000 704000 844800 880000 960000 1056000 1320000 1408000 1760000 1920000 2112000 2640000 3520000 4224000 5280000 7040000 10560000 21120000
• Sum of all divisors σ(n): 76737936
• Sum of proper divisors (its aliquot sum) s(n): 55617936
• 21120000 is an abundant number, because the sum of its proper divisors (55617936) is greater than itself. Its abundance is 34497936

Bases of 21120000

• Binary: 1010000100100010000000000₂
• Hexadecimal: 0x1424400
• Base-36: CKOAO

Squares and roots of 21120000

• 21120000 squared (21120000²) is 446054400000000
• 21120000 cubed (21120000³) is 9420668928000000000000
• The square root of 21120000 is 4595.6501172305
• The cube root of 21120000 is 276.4169292005

Scales and comparisons

• 21,120,000 seconds is equal to 34 weeks, 6 days, 10 hours, 40 minutes.
• To count from 1 to 21,120,000 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 21120000 cubic inches would be around 23 feet tall.

Recreational maths with 21120000

• 21120000 backwards is 00002112
• 21120000 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21120000's digits is 6
• More coming soon!