21346502640

Names of 21346502640

• Cardinal: 21346502640 can be written as Twenty-one billion, three hundred forty-six million, five hundred two thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.134650264 × 10¹⁰

Factors of 21346502640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 9441

Divisors of 21346502640

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 9431 18862 28293 37724 47155 56586 75448 94310 113172 141465 150896 188620 226344 282930 377240 452688 565860 754480 1131720 2263440 88943761 177887522 266831283 355775044 444718805 533662566 711550088 889437610 1067325132 1334156415 1423100176 1778875220 2134650264 2668312830 3557750440 4269300528 5336625660 7115500880 10673251320 21346502640
• Sum of all divisors σ(n): 66181175592
• Sum of proper divisors (its aliquot sum) s(n): 44834672952
• 21346502640 is an abundant number, because the sum of its proper divisors (44834672952) is greater than itself. Its abundance is 23488170312

Bases of 21346502640

• Binary: 10011111000010110011100011111110000₂
• Hexadecimal: 0x4F859C7F0
• Base-36: 9T15MUO

Squares and roots of 21346502640

• 21346502640 squared (21346502640²) is 455673174959526969600
• 21346502640 cubed (21346502640³) is 9727028632250724349717599744000
• The square root of 21346502640 is 146104.4237523285
• The cube root of 21346502640 is 2774.0156729643

Scales and comparisons

• 21,346,502,640 seconds is equal to 678 years, 39 weeks, 1 day, 4 minutes.
• To count from 1 to 21,346,502,640 would take you about one thousand, three hundred fifty-seven 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 21346502640 cubic inches would be around 231.2 feet tall.

Recreational maths with 21346502640

• 21346502640 backwards is 04620564312
• The number of decimal digits it has is: 11
• The sum of 21346502640's digits is 33
• More coming soon!