21228358400

Names of 21228358400

• Cardinal: 21228358400 can be written as Twenty-one billion, two hundred twenty-eight million, three hundred fifty-eight thousand, four hundred.

Scientific notation

• Scientific notation: 2.12283584 × 10¹⁰

Factors of 21228358400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 70627

Divisors of 21228358400

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 47 50 64 80 94 100 128 160 188 200 235 256 320 376 400 470 640 752 800 940 1175 1280 1504 1600 1880 2350 3008 3200 3760 4700 6016 6400 7520 9400 12032 15040 18800 30080 37600 60160 70573 75200 141146 150400 282292 300800 352865 564584 705730 1129168 1411460 1764325 2258336 2822920 3316931 3528650 4516672 5645840 6633862 7057300 9033344 11291680 13267724 14114600 16584655 18066688 22583360 26535448 28229200 33169310 45166720 53070896 56458400 66338620 82923275 90333440 106141792 112916800 132677240 165846550 212283584 225833600 265354480 331693100 424567168 451667200 530708960 663386200 849134336 1061417920 1326772400 2122835840 2653544800 4245671680 5307089600 10614179200 21228358400
• Sum of all divisors σ(n): 53662211232
• Sum of proper divisors (its aliquot sum) s(n): 32433852832
• 21228358400 is an abundant number, because the sum of its proper divisors (32433852832) is greater than itself. Its abundance is 11205494432

Bases of 21228358400

• Binary: 10011110001010011110000101100000000₂
• Hexadecimal: 0x4F14F0B00
• Base-36: 9R2TE68

Squares and roots of 21228358400

• 21228358400 squared (21228358400²) is 450643200358850560000
• 21228358400 cubed (21228358400³) is 9566415367740688299720704000000
• The square root of 21228358400 is 145699.5483863969
• The cube root of 21228358400 is 2768.8885182599

Scales and comparisons

• 21,228,358,400 seconds is equal to 674 years, 51 weeks, 5 days, 14 hours, 13 minutes, 20 seconds.
• To count from 1 to 21,228,358,400 would take you about one thousand, three hundred forty-nine years!

  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 21228358400 cubic inches would be around 230.7 feet tall.

Recreational maths with 21228358400

• 21228358400 backwards is 00485382212
• The number of decimal digits it has is: 11
• The sum of 21228358400's digits is 35
• More coming soon!