20820729423

Names of 20820729423

• Cardinal: 20820729423 can be written as Twenty billion, eight hundred twenty million, seven hundred twenty-nine thousand, four hundred twenty-three.

Scientific notation

• Scientific notation: 2.0820729423 × 10¹⁰

Factors of 20820729423

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 7672

Divisors of 20820729423

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 13 29 31 39 79 87 93 237 377 403 899 1027 1131 1209 2291 2449 2697 3081 6873 7347 7517 11687 22551 29783 31837 35061 71021 89349 95511 97721 213063 217993 233027 293163 593843 653979 699081 923273 1781529 2769819 2833909 3029351 6757783 7719959 8501727 9088053 17221447 18409133 20273349 23159877 51664341 55227399 87851179 223878811 239318729 263553537 533864857 671636433 717956187 1601594571 6940243141 20820729423
• Sum of all divisors σ(n): 32333414400
• Sum of proper divisors (its aliquot sum) s(n): 11512684977
• 20820729423 is a deficient number, because the sum of its proper divisors (11512684977) is less than itself. Its deficiency is 9308044446

Bases of 20820729423

• Binary: 10011011001000000110001111001001111₂
• Hexadecimal: 0x4D9031E4F
• Base-36: 9KC4HN3

Squares and roots of 20820729423

• 20820729423 squared (20820729423²) is 433502773705777912929
• 20820729423 cubed (20820729423³) is 9025843955448000936824362409967
• The square root of 20820729423 is 144293.8994656393
• The cube root of 20820729423 is 2751.0510328731

Scales and comparisons

• 20,820,729,423 seconds is equal to 662 years, 1 week, 5 days, 15 hours, 57 minutes, 3 seconds.
• To count from 1 to 20,820,729,423 would take you about one thousand, three hundred twenty-four 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 20820729423 cubic inches would be around 229.3 feet tall.

Recreational maths with 20820729423

• 20820729423 backwards is 32492702802
• 20820729423 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20820729423's digits is 39
• More coming soon!