20668428

Names of 20668428

• Cardinal: 20668428 can be written as Twenty million, six hundred sixty-eight thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 2.0668428 × 10⁷

Factors of 20668428

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 143

Divisors of 20668428

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 19 22 33 36 38 41 44 57 66 67 76 82 99 114 123 132 134 164 171 198 201 209 228 246 268 342 369 396 402 418 451 492 603 627 684 737 738 779 804 836 902 1206 1254 1273 1353 1474 1476 1558 1804 1881 2211 2337 2412 2508 2546 2706 2747 2948 3116 3762 3819 4059 4422 4674 5092 5412 5494 6633 7011 7524 7638 8118 8241 8569 8844 9348 10988 11457 13266 14003 14022 15276 16236 16482 17138 22914 24723 25707 26532 28006 28044 30217 32964 34276 42009 45828 49446 51414 52193 56012 60434 77121 84018 90651 98892 102828 104386 120868 126027 154242 156579 168036 181302 208772 252054 271953 308484 313158 362604 469737 504108 543906 574123 626316 939474 1087812 1148246 1722369 1878948 2296492 3444738 5167107 6889476 10334214 20668428
• Sum of all divisors σ(n): 62375040
• Sum of proper divisors (its aliquot sum) s(n): 41706612
• 20668428 is an abundant number, because the sum of its proper divisors (41706612) is greater than itself. Its abundance is 21038184

Bases of 20668428

• Binary: 1001110110110000000001100₂
• Hexadecimal: 0x13B600C
• Base-36: CAZV0

Squares and roots of 20668428

• 20668428 squared (20668428²) is 427183915991184
• 20668428 cubed (20668428³) is 8829220010421835138752
• The square root of 20668428 is 4546.2542823735
• The cube root of 20668428 is 274.4326728287

Scales and comparisons

• 20,668,428 seconds is equal to 34 weeks, 1 day, 5 hours, 13 minutes, 48 seconds.
• To count from 1 to 20,668,428 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 20668428 cubic inches would be around 22.9 feet tall.

Recreational maths with 20668428

• 20668428 backwards is 82486602
• 20668428 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20668428's digits is 36
• More coming soon!