21406019321664

Names of 21406019321664

• Cardinal: 21406019321664 can be written as Twenty-one trillion, four hundred six billion, nineteen million, three hundred twenty-one thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.1406019321664 × 10¹³

Factors of 21406019321664

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 12387742668

Divisors of 21406019321664

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 144 192 216 288 432 576 864 1728 12387742663 24775485326 37163227989 49550970652 74326455978 99101941304 111489683967 148652911956 198203882608 222979367934 297305823912 334469051901 396407765216 445958735868 594611647824 668938103802 792815530432 891917471736 1189223295648 1337876207604 1783834943472 2378446591296 2675752415208 3567669886944 5351504830416 7135339773888 10703009660832 21406019321664
• Sum of all divisors σ(n): 62929732733120
• Sum of proper divisors (its aliquot sum) s(n): 41523713411456
• 21406019321664 is an abundant number, because the sum of its proper divisors (41523713411456) is greater than itself. Its abundance is 20117694089792

Bases of 21406019321664

• Binary: 100110111011111111010001011010111111101000000₂
• Hexadecimal: 0x1377FA2D7F40
• Base-36: 7L5SF7TC0

Squares and roots of 21406019321664

• 21406019321664 squared (21406019321664²) is 458217663199452494699728896
• 21406019321664 cubed (21406019321664³) is 9808616151975207306528483297718619602944
• The square root of 21406019321664 is 4626663.9516679833
• The cube root of 21406019321664 is 27765.9137990551

Scales and comparisons

• 21,406,019,321,664 seconds is equal to 680,645 years, 10 weeks, 3 days, 6 hours, 14 minutes, 24 seconds.
• To count from 1 to 21,406,019,321,664 would take you about one million, seven hundred one thousand, six hundred thirteen 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 21406019321664 cubic inches would be around 2313.8 feet tall.

Recreational maths with 21406019321664

• 21406019321664 backwards is 46612391060412
• The number of decimal digits it has is: 14
• The sum of 21406019321664's digits is 45
• More coming soon!