1288948428

Names of 1288948428

• Cardinal: 1288948428 can be written as One billion, two hundred eighty-eight million, nine hundred forty-eight thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 1.288948428 × 10⁹

Factors of 1288948428

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 42138

Divisors of 1288948428

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 23 36 37 46 69 74 92 111 138 148 207 222 276 333 414 444 666 828 851 1332 1702 2553 3404 5106 7659 10212 15318 30636 42073 84146 126219 168292 252438 378657 504876 757314 967679 1514628 1556701 1935358 2903037 3113402 3870716 4670103 5806074 6226804 8709111 9340206 11612148 14010309 17418222 18680412 28020618 34836444 35804123 56041236 71608246 107412369 143216492 214824738 322237107 429649476 644474214 1288948428
• Sum of all divisors σ(n): 3491805408
• Sum of proper divisors (its aliquot sum) s(n): 2202856980
• 1288948428 is an abundant number, because the sum of its proper divisors (2202856980) is greater than itself. Its abundance is 913908552

Bases of 1288948428

• Binary: 1001100110100111100101011001100₂
• Hexadecimal: 0x4CD3CACC
• Base-36: LBEMZ0

Squares and roots of 1288948428

• 1288948428 squared (1288948428²) is 1661388050043671184
• 1288948428 cubed (1288948428³) is 2141443515401775303965698752
• The square root of 1288948428 is 35901.9279148071
• The cube root of 1288948428 is 1088.2913577307

Scales and comparisons

• 1,288,948,428 seconds is equal to 40 years, 51 weeks, 1 day, 9 hours, 13 minutes, 48 seconds.
• To count from 1 to 1,288,948,428 would take you about eighty-one 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 1288948428 cubic inches would be around 90.7 feet tall.

Recreational maths with 1288948428

• 1288948428 backwards is 8248498821
• The number of decimal digits it has is: 10
• The sum of 1288948428's digits is 54
• More coming soon!