21288842182

Names of 21288842182

• Cardinal: 21288842182 can be written as Twenty-one billion, two hundred eighty-eight million, eight hundred forty-two thousand, one hundred eighty-two.

Scientific notation

• Scientific notation: 2.1288842182 × 10¹⁰

Factors of 21288842182

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 584

Divisors of 21288842182

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 19 23 38 46 139 278 361 401 437 529 722 802 874 1058 2641 3197 5282 6394 7619 8303 9223 10051 15238 16606 18446 20102 50179 55739 60743 73531 100358 111478 121486 144761 147062 175237 190969 212129 289522 350474 381938 424258 1059041 1154117 1281997 1397089 2118082 2308234 2563994 2794178 3329503 4030451 6659006 8060902 20121779 24357943 26544691 29485931 40243558 48715886 53089382 58971862 76578569 153157138 462800917 560232689 925601834 1120465378 10644421091 21288842182
• Sum of all divisors σ(n): 35573406120
• Sum of proper divisors (its aliquot sum) s(n): 14284563938
• 21288842182 is a deficient number, because the sum of its proper divisors (14284563938) is less than itself. Its deficiency is 7004278244

Bases of 21288842182

• Binary: 10011110100111010011111001111000110₂
• Hexadecimal: 0x4F4E9F3C6
• Base-36: 9S2TRRA

Squares and roots of 21288842182

• 21288842182 squared (21288842182²) is 453214801450102521124
• 21288842182 cubed (21288842182³) is 9648418382617697319929157252568
• The square root of 21288842182 is 145906.9641312573
• The cube root of 21288842182 is 2771.5157279457

Scales and comparisons

• 21,288,842,182 seconds is equal to 676 years, 47 weeks, 5 days, 15 hours, 16 minutes, 22 seconds.
• To count from 1 to 21,288,842,182 would take you about one thousand, three hundred fifty-three 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 21288842182 cubic inches would be around 231 feet tall.

Recreational maths with 21288842182

• 21288842182 backwards is 28124888212
• 21288842182 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21288842182's digits is 46
• More coming soon!