20390700

Names of 20390700

• Cardinal: 20390700 can be written as Twenty million, three hundred ninety thousand, seven hundred.

Scientific notation

• Scientific notation: 2.03907 × 10⁷

Factors of 20390700

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 225

Divisors of 20390700

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 20 22 25 30 33 37 44 50 55 60 66 74 75 100 110 111 132 148 150 165 167 185 220 222 275 300 330 334 370 407 444 501 550 555 660 668 740 814 825 835 925 1002 1100 1110 1221 1628 1650 1670 1837 1850 2004 2035 2220 2442 2505 2775 3300 3340 3674 3700 4070 4175 4884 5010 5511 5550 6105 6179 7348 8140 8350 9185 10020 10175 11022 11100 12210 12358 12525 16700 18370 18537 20350 22044 24420 24716 25050 27555 30525 30895 36740 37074 40700 45925 50100 55110 61050 61790 67969 74148 91850 92685 110220 122100 123580 135938 137775 154475 183700 185370 203907 271876 275550 308950 339845 370740 407814 463425 551100 617900 679690 815628 926850 1019535 1359380 1699225 1853700 2039070 3398450 4078140 5097675 6796900 10195350 20390700
• Sum of all divisors σ(n): 66495744
• Sum of proper divisors (its aliquot sum) s(n): 46105044
• 20390700 is an abundant number, because the sum of its proper divisors (46105044) is greater than itself. Its abundance is 25714344

Bases of 20390700

• Binary: 1001101110010001100101100₂
• Hexadecimal: 0x137232C
• Base-36: C51KC

Squares and roots of 20390700

• 20390700 squared (20390700²) is 415780646490000
• 20390700 cubed (20390700³) is 8478058428383643000000
• The square root of 20390700 is 4515.6062715877
• The cube root of 20390700 is 273.1979136183

Scales and comparisons

• 20,390,700 seconds is equal to 33 weeks, 5 days, 5 minutes.
• To count from 1 to 20,390,700 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 20390700 cubic inches would be around 22.8 feet tall.

Recreational maths with 20390700

• 20390700 backwards is 00709302
• The number of decimal digits it has is: 8
• The sum of 20390700's digits is 21
• More coming soon!