21357874800

Names of 21357874800

• Cardinal: 21357874800 can be written as Twenty-one billion, three hundred fifty-seven million, eight hundred seventy-four thousand, eight hundred.

Scientific notation

• Scientific notation: 2.13578748 × 10¹⁰

Factors of 21357874800

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1977591

Divisors of 21357874800

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 36 40 45 48 50 54 60 72 75 80 90 100 108 120 135 144 150 180 200 216 225 240 270 300 360 400 432 450 540 600 675 720 900 1080 1200 1350 1800 2160 2700 3600 5400 10800 1977581 3955162 5932743 7910324 9887905 11865486 15820648 17798229 19775810 23730972 29663715 31641296 35596458 39551620 47461944 49439525 53394687 59327430 71192916 79103240 88991145 94923888 98879050 106789374 118654860 142385832 148318575 158206480 177982290 197758100 213578748 237309720 266973435 284771664 296637150 355964580 395516200 427157496 444955725 474619440 533946870 593274300 711929160 791032400 854314992 889911450 1067893740 1186548600 1334867175 1423858320 1779822900 2135787480 2373097200 2669734350 3559645800 4271574960 5339468700 7119291600 10678937400 21357874800
• Sum of all divisors σ(n): 76018252080
• Sum of proper divisors (its aliquot sum) s(n): 54660377280
• 21357874800 is an abundant number, because the sum of its proper divisors (54660377280) is greater than itself. Its abundance is 33302502480

Bases of 21357874800

• Binary: 10011111001000001110100111001110000₂
• Hexadecimal: 0x4F9074E70
• Base-36: 9T7XDO0

Squares and roots of 21357874800

• 21357874800 squared (21357874800²) is 456158815972475040000
• 21357874800 cubed (21357874800³) is 9742582880456362150444992000000
• The square root of 21357874800 is 146143.3364885311
• The cube root of 21357874800 is 2774.5081962631

Scales and comparisons

• 21,357,874,800 seconds is equal to 679 years, 5 weeks, 6 days, 15 hours.
• To count from 1 to 21,357,874,800 would take you about one thousand, three hundred fifty-eight 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 21357874800 cubic inches would be around 231.2 feet tall.

Recreational maths with 21357874800

• 21357874800 backwards is 00847875312
• 21357874800 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21357874800's digits is 45
• More coming soon!