12812800

Names of 12812800

• Cardinal: 12812800 can be written as Twelve million, eight hundred twelve thousand, eight hundred.

Scientific notation

• Scientific notation: 1.28128 × 10⁷

Factors of 12812800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 38

Divisors of 12812800

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 16 20 22 25 26 28 32 35 40 44 50 52 55 56 64 65 70 77 80 88 91 100 104 110 112 128 130 140 143 154 160 175 176 182 200 208 220 224 256 260 275 280 286 308 320 325 350 352 364 385 400 416 440 448 455 512 520 550 560 572 616 640 650 700 704 715 728 770 800 832 880 896 910 1001 1040 1100 1120 1144 1232 1280 1300 1400 1408 1430 1456 1540 1600 1664 1760 1792 1820 1925 2002 2080 2200 2240 2275 2288 2464 2560 2600 2800 2816 2860 2912 3080 3200 3328 3520 3575 3584 3640 3850 4004 4160 4400 4480 4550 4576 4928 5005 5200 5600 5632 5720 5824 6160 6400 6656 7040 7150 7280 7700 8008 8320 8800 8960 9100 9152 9856 10010 10400 11200 11440 11648 12320 12800 14080 14300 14560 15400 16016 16640 17600 17920 18200 18304 19712 20020 20800 22400 22880 23296 24640 25025 28160 28600 29120 30800 32032 33280 35200 36400 36608 39424 40040 41600 44800 45760 46592 49280 50050 57200 58240 61600 64064 70400 72800 73216 80080 83200 89600 91520 98560 100100 114400 116480 123200 128128 140800 145600 160160 166400 183040 197120 200200 228800 232960 246400 256256 291200 320320 366080 400400 457600 492800 512512 582400 640640 800800 915200 985600 1164800 1281280 1601600 1830400 2562560 3203200 6406400 12812800
• Sum of all divisors σ(n): 42622272
• Sum of proper divisors (its aliquot sum) s(n): 29809472
• 12812800 is an abundant number, because the sum of its proper divisors (29809472) is greater than itself. Its abundance is 16996672

Bases of 12812800

• Binary: 110000111000001000000000₂
• Hexadecimal: 0xC38200
• Base-36: 7MMF4

Squares and roots of 12812800

• 12812800 squared (12812800²) is 164167843840000
• 12812800 cubed (12812800³) is 2103449749553152000000
• The square root of 12812800 is 3579.4971713915
• The cube root of 12812800 is 233.9993668865

Scales and comparisons

• 12,812,800 seconds is equal to 21 weeks, 1 day, 7 hours, 6 minutes, 40 seconds.
• To count from 1 to 12,812,800 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 12812800 cubic inches would be around 19.5 feet tall.

Recreational maths with 12812800

• 12812800 backwards is 00821821
• 12812800 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12812800's digits is 22
• More coming soon!