12791220

Names of 12791220

• Cardinal: 12791220 can be written as Twelve million, seven hundred ninety-one thousand, two hundred twenty.

Scientific notation

• Scientific notation: 1.279122 × 10⁷

Factors of 12791220

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 77

Divisors of 12791220

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 10 12 13 15 20 23 26 30 31 39 46 52 60 62 65 69 78 92 93 115 124 130 138 155 156 186 195 230 260 276 299 310 345 372 390 403 460 465 529 598 620 690 713 780 806 897 930 1058 1196 1209 1380 1426 1495 1587 1612 1794 1860 2015 2116 2139 2418 2645 2852 2990 3174 3565 3588 4030 4278 4485 4836 5290 5980 6045 6348 6877 7130 7935 8060 8556 8970 9269 10580 10695 12090 13754 14260 15870 16399 17940 18538 20631 21390 24180 27508 27807 31740 32798 34385 37076 41262 42780 46345 49197 55614 65596 68770 81995 82524 92690 98394 103155 111228 137540 139035 163990 185380 196788 206310 213187 245985 278070 327980 412620 426374 491970 556140 639561 852748 983940 1065935 1279122 2131870 2558244 3197805 4263740 6395610 12791220
• Sum of all divisors σ(n): 41620992
• Sum of proper divisors (its aliquot sum) s(n): 28829772
• 12791220 is an abundant number, because the sum of its proper divisors (28829772) is greater than itself. Its abundance is 16038552

Bases of 12791220

• Binary: 110000110010110110110100₂
• Hexadecimal: 0xC32DB4
• Base-36: 7M5RO

Squares and roots of 12791220

• 12791220 squared (12791220²) is 163615309088400
• 12791220 cubed (12791220³) is 2092839413917723848000
• The square root of 12791220 is 3576.4815112063
• The cube root of 12791220 is 233.8679216655

Scales and comparisons

• 12,791,220 seconds is equal to 21 weeks, 1 day, 1 hour, 7 minutes.
• To count from 1 to 12,791,220 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 12791220 cubic inches would be around 19.5 feet tall.

Recreational maths with 12791220

• 12791220 backwards is 02219721
• The number of decimal digits it has is: 8
• The sum of 12791220's digits is 24
• More coming soon!