12728100

Names of 12728100

• Cardinal: 12728100 can be written as Twelve million, seven hundred twenty-eight thousand, one hundred.

Scientific notation

• Scientific notation: 1.27281 × 10⁷

Factors of 12728100

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 76

Divisors of 12728100

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 7 10 11 12 14 15 19 20 21 22 25 28 29 30 33 35 38 42 44 50 55 57 58 60 66 70 75 76 77 84 87 95 100 105 110 114 116 132 133 140 145 150 154 165 174 175 190 203 209 210 220 228 231 266 275 285 290 300 308 319 330 348 350 380 385 399 406 418 420 435 462 475 525 532 550 551 570 580 609 627 638 660 665 700 725 770 798 812 825 836 870 924 950 957 1015 1045 1050 1100 1102 1140 1155 1218 1254 1276 1330 1425 1450 1463 1540 1595 1596 1650 1653 1740 1900 1914 1925 1995 2030 2090 2100 2175 2204 2233 2310 2436 2508 2660 2755 2850 2900 2926 3045 3135 3190 3300 3306 3325 3828 3850 3857 3990 4060 4180 4350 4389 4466 4620 4785 5075 5225 5510 5700 5775 5852 6061 6090 6270 6380 6612 6650 6699 7315 7700 7714 7975 7980 8265 8700 8778 8932 9570 9975 10150 10450 11020 11165 11550 11571 12122 12180 12540 13300 13398 13775 14630 15225 15428 15675 15950 16530 17556 18183 19140 19285 19950 20300 20900 21945 22330 23100 23142 23925 24244 26796 27550 29260 30305 30450 31350 31900 33060 33495 36366 36575 38570 39900 41325 42427 43890 44660 46284 47850 55100 55825 57855 60610 60900 62700 66990 72732 73150 77140 82650 84854 87780 90915 95700 96425 109725 111650 115710 121220 127281 133980 146300 151525 165300 167475 169708 181830 192850 212135 219450 223300 231420 254562 289275 303050 334950 363660 385700 424270 438900 454575 509124 578550 606100 636405 669900 848540 909150 1060675 1157100 1272810 1818300 2121350 2545620 3182025 4242700 6364050 12728100
• Sum of all divisors σ(n): 49996800
• Sum of proper divisors (its aliquot sum) s(n): 37268700
• 12728100 is an abundant number, because the sum of its proper divisors (37268700) is greater than itself. Its abundance is 24540600

Bases of 12728100

• Binary: 110000100011011100100100₂
• Hexadecimal: 0xC23724
• Base-36: 7KT2C

Squares and roots of 12728100

• 12728100 squared (12728100²) is 162004529610000
• 12728100 cubed (12728100³) is 2062009853329041000000
• The square root of 12728100 is 3567.6462829153
• The cube root of 12728100 is 233.4826029007

Scales and comparisons

• 12,728,100 seconds is equal to 21 weeks, 7 hours, 35 minutes.
• To count from 1 to 12,728,100 would take you about thirty-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 12728100 cubic inches would be around 19.5 feet tall.

Recreational maths with 12728100

• 12728100 backwards is 00182721
• 12728100 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12728100's digits is 21
• More coming soon!