12120840

Names of 12120840

• Cardinal: 12120840 can be written as Twelve million, one hundred twenty thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.212084 × 10⁷

Factors of 12120840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 82

Divisors of 12120840

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 29 30 36 40 43 45 54 58 60 72 81 86 87 90 108 116 120 129 135 145 162 172 174 180 215 216 232 243 258 261 270 290 324 344 348 360 387 405 430 435 486 516 522 540 580 645 648 696 774 783 810 860 870 972 1032 1044 1080 1160 1161 1215 1247 1290 1305 1548 1566 1620 1720 1740 1935 1944 2088 2322 2349 2430 2494 2580 2610 3096 3132 3240 3480 3483 3741 3870 3915 4644 4698 4860 4988 5160 5220 5805 6235 6264 6966 7047 7482 7740 7830 9288 9396 9720 9976 10440 10449 11223 11610 11745 12470 13932 14094 14964 15480 15660 17415 18705 18792 20898 22446 23220 23490 24940 27864 28188 29928 31320 33669 34830 35235 37410 41796 44892 46440 46980 49880 52245 56115 56376 67338 69660 70470 74820 83592 89784 93960 101007 104490 112230 134676 139320 140940 149640 168345 202014 208980 224460 269352 281880 303021 336690 404028 417960 448920 505035 606042 673380 808056 1010070 1212084 1346760 1515105 2020140 2424168 3030210 4040280 6060420 12120840
• Sum of all divisors σ(n): 43243200
• Sum of proper divisors (its aliquot sum) s(n): 31122360
• 12120840 is an abundant number, because the sum of its proper divisors (31122360) is greater than itself. Its abundance is 19001520

Bases of 12120840

• Binary: 101110001111001100001000₂
• Hexadecimal: 0xB8F308
• Base-36: 77SI0

Squares and roots of 12120840

• 12120840 squared (12120840²) is 146914762305600
• 12120840 cubed (12120840³) is 1780730327544208704000
• The square root of 12120840 is 3481.4996768635
• The cube root of 12120840 is 229.7087681263

Scales and comparisons

• 12,120,840 seconds is equal to 20 weeks, 6 hours, 54 minutes.
• To count from 1 to 12,120,840 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 12120840 cubic inches would be around 19.1 feet tall.

Recreational maths with 12120840

• 12120840 backwards is 04802121
• 12120840 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12120840's digits is 18
• More coming soon!