20142720

Names of 20142720

• Cardinal: 20142720 can be written as Twenty million, one hundred forty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.014272 × 10⁷

Factors of 20142720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 292

Divisors of 20142720

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 64 65 72 78 80 90 96 104 117 120 128 130 144 156 160 180 192 195 208 234 240 260 269 288 312 320 360 384 390 416 468 480 520 538 576 585 624 640 720 780 807 832 936 960 1040 1076 1152 1170 1248 1345 1440 1560 1614 1664 1872 1920 2080 2152 2340 2421 2496 2690 2880 3120 3228 3497 3744 4035 4160 4304 4680 4842 4992 5380 5760 6240 6456 6994 7488 8070 8320 8608 9360 9684 10491 10760 12105 12480 12912 13988 14976 16140 17216 17485 18720 19368 20982 21520 24210 24960 25824 27976 31473 32280 34432 34970 37440 38736 41964 43040 48420 51648 52455 55952 62946 64560 69940 74880 77472 83928 86080 96840 103296 104910 111904 125892 129120 139880 154944 157365 167856 172160 193680 209820 223808 251784 258240 279760 309888 314730 335712 387360 419640 447616 503568 516480 559520 629460 671424 774720 839280 1007136 1119040 1258920 1342848 1549440 1678560 2014272 2238080 2517840 3357120 4028544 5035680 6714240 10071360 20142720
• Sum of all divisors σ(n): 75184200
• Sum of proper divisors (its aliquot sum) s(n): 55041480
• 20142720 is an abundant number, because the sum of its proper divisors (55041480) is greater than itself. Its abundance is 34898760

Bases of 20142720

• Binary: 1001100110101101010000000₂
• Hexadecimal: 0x1335A80
• Base-36: BZQ80

Squares and roots of 20142720

• 20142720 squared (20142720²) is 405729168998400
• 20142720 cubed (20142720³) is 8172489046967451648000
• The square root of 20142720 is 4488.0641706643
• The cube root of 20142720 is 272.0859013573

Scales and comparisons

• 20,142,720 seconds is equal to 33 weeks, 2 days, 3 hours, 12 minutes.
• To count from 1 to 20,142,720 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 20142720 cubic inches would be around 22.7 feet tall.

Recreational maths with 20142720

• 20142720 backwards is 02724102
• 20142720 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20142720's digits is 18
• More coming soon!