21428163360

Names of 21428163360

• Cardinal: 21428163360 can be written as Twenty-one billion, four hundred twenty-eight million, one hundred sixty-three thousand, three hundred sixty.

Scientific notation

• Scientific notation: 2.142816336 × 10¹⁰

Factors of 21428163360

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4960233

Divisors of 21428163360

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 90 96 108 120 135 144 160 180 216 240 270 288 360 432 480 540 720 864 1080 1440 2160 4320 4960223 9920446 14880669 19840892 24801115 29761338 39681784 44642007 49602230 59522676 74403345 79363568 89284014 99204460 119045352 133926021 148806690 158727136 178568028 198408920 223210035 238090704 267852042 297613380 357136056 396817840 446420070 476181408 535704084 595226760 669630105 714272112 793635680 892840140 1071408168 1190453520 1339260210 1428544224 1785680280 2142816336 2380907040 2678520420 3571360560 4285632672 5357040840 7142721120 10714081680 21428163360
• Sum of all divisors σ(n): 74998586880
• Sum of proper divisors (its aliquot sum) s(n): 53570423520
• 21428163360 is an abundant number, because the sum of its proper divisors (53570423520) is greater than itself. Its abundance is 32142260160

Bases of 21428163360

• Binary: 10011111101001101111101001100100000₂
• Hexadecimal: 0x4FD37D320
• Base-36: 9UDRWO0

Squares and roots of 21428163360

• 21428163360 squared (21428163360²) is 459166184982846489600
• 21428163360 cubed (21428163360³) is 9839088021200413376951341056000
• The square root of 21428163360 is 146383.6171161241
• The cube root of 21428163360 is 2777.5484900781

Scales and comparisons

• 21,428,163,360 seconds is equal to 681 years, 18 weeks, 1 day, 3 hours, 36 minutes.
• To count from 1 to 21,428,163,360 would take you about one thousand, three hundred sixty-two 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 21428163360 cubic inches would be around 231.5 feet tall.

Recreational maths with 21428163360

• 21428163360 backwards is 06336182412
• 21428163360 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21428163360's digits is 36
• More coming soon!