20947500

Names of 20947500

• Cardinal: 20947500 can be written as Twenty million, nine hundred forty-seven thousand, five hundred.

Scientific notation

• Scientific notation: 2.09475 × 10⁷

Factors of 20947500

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 36

Divisors of 20947500

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 19 20 21 25 28 30 35 36 38 42 45 49 50 57 60 63 70 75 76 84 90 95 98 100 105 114 125 126 133 140 147 150 171 175 180 190 196 210 225 228 245 250 252 266 285 294 300 315 342 350 375 380 399 420 441 450 475 490 500 525 532 570 588 625 630 665 684 700 735 750 798 855 875 882 900 931 950 980 1050 1125 1140 1197 1225 1250 1260 1330 1425 1470 1500 1575 1596 1710 1750 1764 1862 1875 1900 1995 2100 2205 2250 2375 2394 2450 2500 2625 2660 2793 2850 2940 3150 3325 3420 3500 3675 3724 3750 3990 4275 4375 4410 4500 4655 4750 4788 4900 5250 5586 5625 5700 5985 6125 6300 6650 7125 7350 7500 7875 7980 8379 8550 8750 8820 9310 9500 9975 10500 11025 11172 11250 11875 11970 12250 13125 13300 13965 14250 14700 15750 16625 16758 17100 17500 18375 18620 19950 21375 22050 22500 23275 23750 23940 24500 26250 27930 28500 29925 30625 31500 33250 33516 35625 36750 39375 39900 41895 42750 44100 46550 47500 49875 52500 55125 55860 59850 61250 66500 69825 71250 73500 78750 83125 83790 85500 91875 93100 99750 106875 110250 116375 119700 122500 139650 142500 149625 157500 166250 167580 183750 199500 209475 213750 220500 232750 249375 275625 279300 299250 332500 349125 367500 418950 427500 465500 498750 551250 581875 598500 698250 748125 837900 997500 1047375 1102500 1163750 1396500 1496250 1745625 2094750 2327500 2992500 3491250 4189500 5236875 6982500 10473750 20947500
• Sum of all divisors σ(n): 81020940
• Sum of proper divisors (its aliquot sum) s(n): 60073440
• 20947500 is an abundant number, because the sum of its proper divisors (60073440) is greater than itself. Its abundance is 39125940

Bases of 20947500

• Binary: 1001111111010001000101100₂
• Hexadecimal: 0x13FA22C
• Base-36: CGZ70

Squares and roots of 20947500

• 20947500 squared (20947500²) is 438797756250000
• 20947500 cubed (20947500³) is 9191715999046875000000
• The square root of 20947500 is 4576.8438907177
• The cube root of 20947500 is 275.6623154315

Scales and comparisons

• 20,947,500 seconds is equal to 34 weeks, 4 days, 10 hours, 45 minutes.
• To count from 1 to 20,947,500 would take you about fifty-one 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 20947500 cubic inches would be around 23 feet tall.

Recreational maths with 20947500

• 20947500 backwards is 00574902
• The number of decimal digits it has is: 8
• The sum of 20947500's digits is 27
• More coming soon!