21232800

Names of 21232800

• Cardinal: 21232800 can be written as Twenty-one million, two hundred thirty-two thousand, eight hundred.

Scientific notation

• Scientific notation: 2.12328 × 10⁷

Factors of 21232800

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 993

Divisors of 21232800

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 45 48 50 54 60 72 75 80 90 96 100 108 120 135 144 150 160 180 200 216 225 240 270 288 300 360 400 432 450 480 540 600 675 720 800 864 900 983 1080 1200 1350 1440 1800 1966 2160 2400 2700 2949 3600 3932 4320 4915 5400 5898 7200 7864 8847 9830 10800 11796 14745 15728 17694 19660 21600 23592 24575 26541 29490 31456 35388 39320 44235 47184 49150 53082 58980 70776 73725 78640 88470 94368 98300 106164 117960 132705 141552 147450 157280 176940 196600 212328 221175 235920 265410 283104 294900 353880 393200 424656 442350 471840 530820 589800 663525 707760 786400 849312 884700 1061640 1179600 1327050 1415520 1769400 2123280 2359200 2654100 3538800 4246560 5308200 7077600 10616400 21232800
• Sum of all divisors σ(n): 76870080
• Sum of proper divisors (its aliquot sum) s(n): 55637280
• 21232800 is an abundant number, because the sum of its proper divisors (55637280) is greater than itself. Its abundance is 34404480

Bases of 21232800

• Binary: 1010000111111110010100000₂
• Hexadecimal: 0x143FCA0
• Base-36: CN3C0

Squares and roots of 21232800

• 21232800 squared (21232800²) is 450831795840000
• 21232800 cubed (21232800³) is 9572421354711552000000
• The square root of 21232800 is 4607.9062490463
• The cube root of 21232800 is 276.9081615897

Scales and comparisons

• 21,232,800 seconds is equal to 35 weeks, 18 hours.
• To count from 1 to 21,232,800 would take you about four 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 21232800 cubic inches would be around 23.1 feet tall.

Recreational maths with 21232800

• 21232800 backwards is 00823212
• 21232800 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21232800's digits is 18
• More coming soon!