20144640

Names of 20144640

• Cardinal: 20144640 can be written as Twenty million, one hundred forty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.014464 × 10⁷

Factors of 20144640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 114

Divisors of 20144640

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 43 48 60 61 64 80 86 96 120 122 128 129 160 172 183 192 215 240 244 256 258 305 320 344 366 384 430 480 488 512 516 610 640 645 688 732 768 860 915 960 976 1032 1220 1280 1290 1376 1464 1536 1720 1830 1920 1952 2064 2440 2560 2580 2623 2752 2928 3440 3660 3840 3904 4128 4880 5160 5246 5504 5856 6880 7320 7680 7808 7869 8256 9760 10320 10492 11008 11712 13115 13760 14640 15616 15738 16512 19520 20640 20984 22016 23424 26230 27520 29280 31232 31476 33024 39040 39345 41280 41968 46848 52460 55040 58560 62952 66048 78080 78690 82560 83936 93696 104920 110080 117120 125904 156160 157380 165120 167872 209840 234240 251808 314760 330240 335744 419680 468480 503616 629520 671488 839360 1007232 1259040 1342976 1678720 2014464 2518080 3357440 4028928 5036160 6714880 10072320 20144640
• Sum of all divisors σ(n): 66977856
• Sum of proper divisors (its aliquot sum) s(n): 46833216
• 20144640 is an abundant number, because the sum of its proper divisors (46833216) is greater than itself. Its abundance is 26688576

Bases of 20144640

• Binary: 1001100110110001000000000₂
• Hexadecimal: 0x1336200
• Base-36: BZRPC

Squares and roots of 20144640

• 20144640 squared (20144640²) is 405806520729600
• 20144640 cubed (20144640³) is 8174826269750329344000
• The square root of 20144640 is 4488.2780662521
• The cube root of 20144640 is 272.0945461403

Scales and comparisons

• 20,144,640 seconds is equal to 33 weeks, 2 days, 3 hours, 44 minutes.
• To count from 1 to 20,144,640 would take you about forty-nine 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 20144640 cubic inches would be around 22.7 feet tall.

Recreational maths with 20144640

• 20144640 backwards is 04644102
• The number of decimal digits it has is: 8
• The sum of 20144640's digits is 21
• More coming soon!