28400400

Names of 28400400

• Cardinal: 28400400 can be written as Twenty-eight million, four hundred thousand, four hundred.

Scientific notation

• Scientific notation: 2.84004 × 10⁷

Factors of 28400400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 40

Divisors of 28400400

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 23 24 25 28 30 35 36 40 42 45 46 48 49 50 56 60 63 69 70 72 75 80 84 90 92 98 100 105 112 115 120 126 138 140 144 147 150 161 168 175 180 184 196 200 207 210 225 230 240 245 252 276 280 294 300 315 322 336 343 345 350 360 368 392 400 414 420 441 450 460 483 490 504 525 552 560 575 588 600 630 644 686 690 700 720 735 784 805 828 840 882 900 920 966 980 1008 1029 1035 1050 1104 1127 1150 1176 1200 1225 1260 1288 1372 1380 1400 1449 1470 1575 1610 1656 1680 1715 1725 1764 1800 1840 1932 1960 2058 2070 2100 2205 2254 2300 2352 2415 2450 2520 2576 2744 2760 2800 2898 2940 3087 3150 3220 3312 3381 3430 3450 3528 3600 3675 3864 3920 4025 4116 4140 4200 4410 4508 4600 4830 4900 5040 5145 5175 5488 5520 5635 5796 5880 6174 6300 6440 6762 6860 6900 7056 7245 7350 7728 7889 8050 8232 8280 8400 8575 8820 9016 9200 9660 9800 10143 10290 10350 11025 11270 11592 11760 12075 12348 12600 12880 13524 13720 13800 14490 14700 15435 15778 16100 16464 16560 16905 17150 17640 18032 19320 19600 20286 20580 20700 22050 22540 23184 23667 24150 24696 25200 25725 27048 27440 27600 28175 28980 29400 30870 31556 32200 33810 34300 35280 36225 38640 39445 40572 41160 41400 44100 45080 47334 48300 49392 50715 51450 54096 56350 57960 58800 61740 63112 64400 67620 68600 71001 72450 77175 78890 81144 82320 82800 84525 88200 90160 94668 96600 101430 102900 112700 115920 118335 123480 126224 135240 137200 142002 144900 154350 157780 162288 169050 176400 189336 193200 197225 202860 205800 225400 236670 246960 253575 270480 284004 289800 308700 315560 338100 355005 378672 394450 405720 411600 450800 473340 507150 568008 579600 591675 617400 631120 676200 710010 788900 811440 946680 1014300 1136016 1183350 1234800 1352400 1420020 1577800 1775025 1893360 2028600 2366700 2840040 3155600 3550050 4057200 4733400 5680080 7100100 9466800 14200200 28400400
• Sum of all divisors σ(n): 119932800
• Sum of proper divisors (its aliquot sum) s(n): 91532400
• 28400400 is an abundant number, because the sum of its proper divisors (91532400) is greater than itself. Its abundance is 63132000

Bases of 28400400

• Binary: 1101100010101101100010000₂
• Hexadecimal: 0x1B15B10
• Base-36: GWPW0

Squares and roots of 28400400

• 28400400 squared (28400400²) is 806582720160000
• 28400400 cubed (28400400³) is 22907271885632064000000
• The square root of 28400400 is 5329.2025669889
• The cube root of 28400400 is 305.0994927583

Scales and comparisons

• 28,400,400 seconds is equal to 46 weeks, 6 days, 17 hours.
• To count from 1 to 28,400,400 would take you about eighteen 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 28400400 cubic inches would be around 25.4 feet tall.

Recreational maths with 28400400

• 28400400 backwards is 00400482
• 28400400 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28400400's digits is 18
• More coming soon!