21240624960

Names of 21240624960

• Cardinal: 21240624960 can be written as Twenty-one billion, two hundred forty million, six hundred twenty-four thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.124062496 × 10¹⁰

Factors of 21240624960

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 7375227

Divisors of 21240624960

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 720 960 1440 2880 7375217 14750434 22125651 29500868 36876085 44251302 59001736 66376953 73752170 88502604 110628255 118003472 132753906 147504340 177005208 221256510 236006944 265507812 295008680 331884765 354010416 442513020 472013888 531015624 590017360 663769530 708020832 885026040 1062031248 1180034720 1327539060 1416041664 1770052080 2124062496 2360069440 2655078120 3540104160 4248124992 5310156240 7080208320 10620312480 21240624960
• Sum of all divisors σ(n): 73058909508
• Sum of proper divisors (its aliquot sum) s(n): 51818284548
• 21240624960 is an abundant number, because the sum of its proper divisors (51818284548) is greater than itself. Its abundance is 30577659588

Bases of 21240624960

• Binary: 10011110010000010100011011101000000₂
• Hexadecimal: 0x4F20A3740
• Base-36: 9RA4B40

Squares and roots of 21240624960

• 21240624960 squared (21240624960²) is 451164148691375001600
• 21240624960 cubed (21240624960³) is 9583008477751171195704999936000
• The square root of 21240624960 is 145741.6377017907
• The cube root of 21240624960 is 2769.4217389099

Scales and comparisons

• 21,240,624,960 seconds is equal to 675 years, 20 weeks, 13 hours, 36 minutes.
• To count from 1 to 21,240,624,960 would take you about one thousand, three hundred fifty 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 21240624960 cubic inches would be around 230.8 feet tall.

Recreational maths with 21240624960

• 21240624960 backwards is 06942604212
• 21240624960 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21240624960's digits is 36
• More coming soon!