20420946

Names of 20420946

• Cardinal: 20420946 can be written as Twenty million, four hundred twenty thousand, nine hundred forty-six.

Scientific notation

• Scientific notation: 2.0420946 × 10⁷

Factors of 20420946

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 162

Divisors of 20420946

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 39 42 49 63 78 91 98 117 126 137 147 169 182 234 273 274 294 338 411 441 507 546 637 819 822 882 959 1014 1183 1233 1274 1521 1638 1781 1911 1918 2366 2466 2877 3042 3549 3562 3822 5343 5733 5754 6713 7098 8281 8631 10647 10686 11466 12467 13426 16029 16562 17262 20139 21294 23153 24843 24934 32058 37401 40278 46306 49686 60417 69459 74529 74802 87269 112203 120834 138918 149058 162071 174538 208377 224406 261807 324142 416754 486213 523614 785421 972426 1134497 1458639 1570842 2268994 2917278 3403491 6806982 10210473 20420946
• Sum of all divisors σ(n): 56139642
• Sum of proper divisors (its aliquot sum) s(n): 35718696
• 20420946 is an abundant number, because the sum of its proper divisors (35718696) is greater than itself. Its abundance is 15297750

Bases of 20420946

• Binary: 1001101111001100101010010₂
• Hexadecimal: 0x1379952
• Base-36: C5OWI

Squares and roots of 20420946

• 20420946 squared (20420946²) is 417015035534916
• 20420946 cubed (20420946³) is 8515841521846600750536
• The square root of 20420946 is 4518.9540825283
• The cube root of 20420946 is 273.3329271591

Scales and comparisons

• 20,420,946 seconds is equal to 33 weeks, 5 days, 8 hours, 29 minutes, 6 seconds.
• To count from 1 to 20,420,946 would take you about fifty weeks!

  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 20420946 cubic inches would be around 22.8 feet tall.

Recreational maths with 20420946

• 20420946 backwards is 64902402
• The number of decimal digits it has is: 8
• The sum of 20420946's digits is 27
• More coming soon!