128249000

Names of 128249000

• Cardinal: 128249000 can be written as One hundred twenty-eight million, two hundred forty-nine thousand.

Scientific notation

• Scientific notation: 1.28249 × 10⁸

Factors of 128249000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 238

Divisors of 128249000

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 89 100 110 125 131 178 200 220 250 262 275 356 440 445 500 524 550 655 712 890 979 1000 1048 1100 1310 1375 1441 1780 1958 2200 2225 2620 2750 2882 3275 3560 3916 4450 4895 5240 5500 5764 6550 7205 7832 8900 9790 11000 11125 11528 11659 13100 14410 16375 17800 19580 22250 23318 24475 26200 28820 32750 36025 39160 44500 46636 48950 57640 58295 65500 72050 89000 93272 97900 116590 122375 128249 131000 144100 180125 195800 233180 244750 256498 288200 291475 360250 466360 489500 512996 582950 641245 720500 979000 1025992 1165900 1282490 1441000 1457375 2331800 2564980 2914750 3206225 5129960 5829500 6412450 11659000 12824900 16031125 25649800 32062250 64124500 128249000
• Sum of all divisors σ(n): 333590400
• Sum of proper divisors (its aliquot sum) s(n): 205341400
• 128249000 is an abundant number, because the sum of its proper divisors (205341400) is greater than itself. Its abundance is 77092400

Bases of 128249000

• Binary: 111101001001110110010101000₂
• Hexadecimal: 0x7A4ECA8
• Base-36: 24CTK8

Squares and roots of 128249000

• 128249000 squared (128249000²) is 16447806001000000
• 128249000 cubed (128249000³) is 2109414671822249000000000
• The square root of 128249000 is 11324.7075017415
• The cube root of 128249000 is 504.2950003047

Scales and comparisons

• 128,249,000 seconds is equal to 4 years, 4 weeks, 8 hours, 43 minutes, 20 seconds.
• To count from 1 to 128,249,000 would take you about six years!

  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 128249000 cubic inches would be around 42 feet tall.

Recreational maths with 128249000

• 128249000 backwards is 000942821
• The number of decimal digits it has is: 9
• The sum of 128249000's digits is 26
• More coming soon!