21309320904804

Names of 21309320904804

• Cardinal: 21309320904804 can be written as Twenty-one trillion, three hundred nine billion, three hundred twenty million, nine hundred four thousand, eight hundred four.

Scientific notation

• Scientific notation: 2.1309320904804 × 10¹³

Factors of 21309320904804

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 40517

Divisors of 21309320904804

• Number of divisors d(n): 81
• Complete list of divisors:
  1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 361 684 722 1083 1444 2166 3249 4332 6498 12996 40493 80986 121479 161972 242958 364437 485916 728874 769367 1457748 1538734 2308101 3077468 4616202 6924303 9232404 13848606 14617973 27697212 29235946 43853919 58471892 87707838 131561757 175415676 263123514 526247028 1639683049 3279366098 4919049147 6558732196 9838098294 14757147441 19676196588 29514294882 31153977931 59028589764 62307955862 93461933793 124615911724 186923867586 280385801379 373847735172 560771602758 591925580689 1121543205516 1183851161378 1775776742067 2367702322756 3551553484134 5327330226201 7103106968268 10654660452402 21309320904804
• Sum of all divisors σ(n): 56850854959353
• Sum of proper divisors (its aliquot sum) s(n): 35541534054549
• 21309320904804 is an abundant number, because the sum of its proper divisors (35541534054549) is greater than itself. Its abundance is 14232213149745

Bases of 21309320904804

• Binary: 100110110000101110110100000001100000001100100₂
• Hexadecimal: 0x13617680C064
• Base-36: 7JXD7H5D0

Squares and roots of 21309320904804

• 21309320904804 squared (21309320904804²) is 454087157423916765230278416
• 21309320904804 cubed (21309320904804³) is 9676288956296494389446461303053951910464
• 21309320904804 is a perfect square number. Its square root is 4616202
• The cube root of 21309320904804 is 27724.0412623561

Scales and comparisons

• 21,309,320,904,804 seconds is equal to 677,570 years, 25 weeks, 3 days, 14 hours, 53 minutes, 24 seconds.
• To count from 1 to 21,309,320,904,804 would take you about one million, six hundred ninety-three thousand, nine hundred twenty-six 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 21309320904804 cubic inches would be around 2310.3 feet tall.

Recreational maths with 21309320904804

• 21309320904804 backwards is 40840902390312
• The number of decimal digits it has is: 14
• The sum of 21309320904804's digits is 45
• More coming soon!