20897420712

Names of 20897420712

• Cardinal: 20897420712 can be written as Twenty billion, eight hundred ninety-seven million, four hundred twenty thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 2.0897420712 × 10¹⁰

Factors of 20897420712

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 618

Divisors of 20897420712

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 19 21 24 28 38 42 56 57 76 84 114 133 152 168 228 266 361 399 456 532 587 722 798 1064 1083 1174 1444 1596 1761 2166 2348 2527 2888 3192 3522 4109 4332 4696 5054 7044 7581 8218 8664 10108 11153 12327 14088 15162 16436 20216 22306 24654 30324 32872 33459 44612 49308 60648 66918 78071 89224 98616 133836 156142 211907 234213 267672 312284 344569 423814 468426 624568 635721 689138 847628 936852 1033707 1271442 1378276 1483349 1695256 1873704 2067414 2411983 2542884 2756552 2966698 4134828 4450047 4823966 5085768 5933396 6546811 7235949 8269656 8900094 9647932 11866792 13093622 14471898 17800188 19295864 19640433 26187244 28943796 35600376 39280866 45827677 52374488 57887592 78561732 91655354 124389409 137483031 157123464 183310708 248778818 274966062 366621416 373168227 497557636 549932124 746336454 870725863 995115272 1099864248 1492672908 1741451726 2612177589 2985345816 3482903452 5224355178 6965806904 10448710356 20897420712
• Sum of all divisors σ(n): 63122312160
• Sum of proper divisors (its aliquot sum) s(n): 42224891448
• 20897420712 is an abundant number, because the sum of its proper divisors (42224891448) is greater than itself. Its abundance is 21327470736

Bases of 20897420712

• Binary: 10011011101100101010101010110101000₂
• Hexadecimal: 0x4DD9555A8
• Base-36: 9LLS90O

Squares and roots of 20897420712

• 20897420712 squared (20897420712²) is 436702192414326586944
• 20897420712 cubed (20897420712³) is 9125949440734957703535814384128
• The square root of 20897420712 is 144559.4020186857
• The cube root of 20897420712 is 2754.4246440203

Scales and comparisons

• 20,897,420,712 seconds is equal to 664 years, 24 weeks, 4 days, 7 hours, 5 minutes, 12 seconds.
• To count from 1 to 20,897,420,712 would take you about one thousand, three hundred twenty-eight 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 20897420712 cubic inches would be around 229.5 feet tall.

Recreational maths with 20897420712

• 20897420712 backwards is 21702479802
• 20897420712 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20897420712's digits is 42
• More coming soon!