20929680

Names of 20929680

• Cardinal: 20929680 can be written as Twenty million, nine hundred twenty-nine thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.092968 × 10⁷

Factors of 20929680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 760

Divisors of 20929680

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 41 45 48 60 72 80 82 90 120 123 144 164 180 205 240 246 328 360 369 410 492 615 656 709 720 738 820 984 1230 1418 1476 1640 1845 1968 2127 2460 2836 2952 3280 3545 3690 4254 4920 5672 5904 6381 7090 7380 8508 9840 10635 11344 12762 14180 14760 17016 21270 25524 28360 29069 29520 31905 34032 42540 51048 56720 58138 63810 85080 87207 102096 116276 127620 145345 170160 174414 232552 255240 261621 290690 348828 436035 465104 510480 523242 581380 697656 872070 1046484 1162760 1308105 1395312 1744140 2092968 2325520 2616210 3488280 4185936 5232420 6976560 10464840 20929680
• Sum of all divisors σ(n): 72104760
• Sum of proper divisors (its aliquot sum) s(n): 51175080
• 20929680 is an abundant number, because the sum of its proper divisors (51175080) is greater than itself. Its abundance is 30245400

Bases of 20929680

• Binary: 1001111110101110010010000₂
• Hexadecimal: 0x13F5C90
• Base-36: CGLG0

Squares and roots of 20929680

• 20929680 squared (20929680²) is 438051504902400
• 20929680 cubed (20929680³) is 9168277821125663232000
• The square root of 20929680 is 4574.8967201457
• The cube root of 20929680 is 275.5841247791

Scales and comparisons

• 20,929,680 seconds is equal to 34 weeks, 4 days, 5 hours, 48 minutes.
• To count from 1 to 20,929,680 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 20929680 cubic inches would be around 23 feet tall.

Recreational maths with 20929680

• 20929680 backwards is 08692902
• 20929680 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20929680's digits is 36
• More coming soon!