21104782272

Names of 21104782272

• Cardinal: 21104782272 can be written as Twenty-one billion, one hundred four million, seven hundred eighty-two thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 2.1104782272 × 10¹⁰

Factors of 21104782272

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5234333

Divisors of 21104782272

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 144 168 192 224 252 288 336 448 504 576 672 1008 1344 2016 4032 5234321 10468642 15702963 20937284 31405926 36640247 41874568 47108889 62811852 73280494 83749136 94217778 109920741 125623704 146560988 167498272 188435556 219841482 251247408 293121976 329762223 334996544 376871112 439682964 502494816 586243952 659524446 753742224 879365928 1004989632 1172487904 1319048892 1507484448 1758731856 2344975808 2638097784 3014968896 3517463712 5276195568 7034927424 10552391136 21104782272
• Sum of all divisors σ(n): 69134924976
• Sum of proper divisors (its aliquot sum) s(n): 48030142704
• 21104782272 is an abundant number, because the sum of its proper divisors (48030142704) is greater than itself. Its abundance is 26925360432

Bases of 21104782272

• Binary: 10011101001111100010110101111000000₂
• Hexadecimal: 0x4E9F16BC0
• Base-36: 9P18Q80

Squares and roots of 21104782272

• 21104782272 squared (21104782272²) is 445411834748525481984
• 21104782272 cubed (21104782272³) is 9400319793739674170316178587648
• The square root of 21104782272 is 145274.8507898047
• The cube root of 21104782272 is 2763.5052376571

Scales and comparisons

• 21,104,782,272 seconds is equal to 671 years, 3 weeks, 3 days, 7 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,104,782,272 would take you about one thousand, three hundred forty-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 21104782272 cubic inches would be around 230.3 feet tall.

Recreational maths with 21104782272

• 21104782272 backwards is 27228740112
• 21104782272 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21104782272's digits is 36
• More coming soon!