28070400

Names of 28070400

• Cardinal: 28070400 can be written as Twenty-eight million, seventy thousand, four hundred.

Scientific notation

• Scientific notation: 2.80704 × 10⁷

Factors of 28070400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 70

Divisors of 28070400

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 20 24 25 30 32 34 40 43 48 50 51 60 64 68 75 80 85 86 96 100 102 120 128 129 136 150 160 170 172 192 200 204 215 240 255 256 258 272 300 320 340 344 384 400 408 425 430 480 510 512 516 544 600 640 645 680 688 731 768 800 816 850 860 960 1020 1032 1075 1088 1200 1275 1280 1290 1360 1376 1462 1536 1600 1632 1700 1720 1920 2040 2064 2150 2176 2193 2400 2550 2560 2580 2720 2752 2924 3200 3225 3264 3400 3440 3655 3840 4080 4128 4300 4352 4386 4800 5100 5160 5440 5504 5848 6400 6450 6528 6800 6880 7310 7680 8160 8256 8600 8704 8772 9600 10200 10320 10880 10965 11008 11696 12800 12900 13056 13600 13760 14620 16320 16512 17200 17544 18275 19200 20400 20640 21760 21930 22016 23392 25800 26112 27200 27520 29240 32640 33024 34400 35088 36550 38400 40800 41280 43520 43860 46784 51600 54400 54825 55040 58480 65280 66048 68800 70176 73100 81600 82560 87720 93568 103200 108800 109650 110080 116960 130560 137600 140352 146200 163200 165120 175440 187136 206400 217600 219300 233920 275200 280704 292400 326400 330240 350880 374272 412800 438600 467840 550400 561408 584800 652800 701760 825600 877200 935680 1122816 1169600 1403520 1651200 1754400 1871360 2339200 2807040 3508800 4678400 5614080 7017600 9356800 14035200 28070400
• Sum of all divisors σ(n): 100466784
• Sum of proper divisors (its aliquot sum) s(n): 72396384
• 28070400 is an abundant number, because the sum of its proper divisors (72396384) is greater than itself. Its abundance is 44325984

Bases of 28070400

• Binary: 1101011000101001000000000₂
• Hexadecimal: 0x1AC5200
• Base-36: GPN9C

Squares and roots of 28070400

• 28070400 squared (28070400²) is 787947356160000
• 28070400 cubed (28070400³) is 22117997466353664000000
• The square root of 28070400 is 5298.1506207355
• The cube root of 28070400 is 303.9131792697

Scales and comparisons

• 28,070,400 seconds is equal to 46 weeks, 2 days, 21 hours, 20 minutes.
• To count from 1 to 28,070,400 would take you about seventeen 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 28070400 cubic inches would be around 25.3 feet tall.

Recreational maths with 28070400

• 28070400 backwards is 00407082
• The number of decimal digits it has is: 8
• The sum of 28070400's digits is 21
• More coming soon!