12281220

Names of 12281220

• Cardinal: 12281220 can be written as Twelve million, two hundred eighty-one thousand, two hundred twenty.

Scientific notation

• Scientific notation: 1.228122 × 10⁷

Factors of 12281220

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 36

Divisors of 12281220

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 19 20 21 27 28 30 35 36 38 42 45 54 57 60 63 70 76 81 84 90 95 105 108 114 126 133 135 140 162 171 180 189 190 210 228 243 252 266 270 285 315 324 342 361 378 380 399 405 420 486 513 532 540 567 570 630 665 684 722 756 798 810 855 945 972 1026 1083 1134 1140 1197 1215 1260 1330 1444 1539 1596 1620 1701 1710 1805 1890 1995 2052 2166 2268 2394 2430 2527 2565 2660 2835 3078 3249 3402 3420 3591 3610 3780 3990 4332 4617 4788 4860 5054 5130 5415 5670 5985 6156 6498 6804 7182 7220 7581 7695 7980 8505 9234 9747 10108 10260 10773 10830 11340 11970 12635 12996 14364 15162 15390 16245 17010 17955 18468 19494 21546 21660 22743 23085 23940 25270 29241 30324 30780 32319 32490 34020 35910 37905 38988 43092 45486 46170 48735 50540 53865 58482 64638 64980 68229 71820 75810 87723 90972 92340 97470 107730 113715 116964 129276 136458 146205 151620 161595 175446 194940 204687 215460 227430 272916 292410 323190 341145 350892 409374 438615 454860 584820 614061 646380 682290 818748 877230 1023435 1228122 1364580 1754460 2046870 2456244 3070305 4093740 6140610 12281220
• Sum of all divisors σ(n): 46597824
• Sum of proper divisors (its aliquot sum) s(n): 34316604
• 12281220 is an abundant number, because the sum of its proper divisors (34316604) is greater than itself. Its abundance is 22035384

Bases of 12281220

• Binary: 101110110110010110000100₂
• Hexadecimal: 0xBB6584
• Base-36: 7B890

Squares and roots of 12281220

• 12281220 squared (12281220²) is 150828364688400
• 12281220 cubed (12281220³) is 1852356328978471848000
• The square root of 12281220 is 3504.4571619581
• The cube root of 12281220 is 230.7174822429

Scales and comparisons

• 12,281,220 seconds is equal to 20 weeks, 2 days, 3 hours, 27 minutes.
• To count from 1 to 12,281,220 would take you about thirty 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 12281220 cubic inches would be around 19.2 feet tall.

Recreational maths with 12281220

• 12281220 backwards is 02218221
• 12281220 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12281220's digits is 18
• More coming soon!